basic patient needs
TRANSCRIPT
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THE PERIOPERATIVE PATIENT
1. Basic Patient Needs
Following Maslows Hierarchy of Needs, the basic needs should be
met first before satisfaction of the higher level of needs can be
met. But priorities may be changed according to the situation:
Preoperatively: anxiety and nutrition status are addressed
Intraoperatively: the team concentrates on the patients
physiologic needs for oxygen, circulation, and the prevention of
shock and infection.
Postoperatively: Team members must prevent complications and
encourage patients self actualization.
2. Patient Reaction to Illness and Surgery
All patients have some type of emotional reaction
before any surgical procedure, be it obvious or hidden, normal or
abnormal. For example, preoperative anxiety may be an
anticipatory response to an experience the patient views as a
threat to his or her customary role in life, body integrity, or lifeitself. Psychological distress directly influences body functioning.
Therefore, it is imperative to identify any anxiety the patient is
experiencing.
Undoubtedly, a patient about to undergo surgery is
faced with various fears, including fears of the unknown, of death,
of anesthesia, pain, or cancer. Concerns about loss of work time,
loss of job, increased responsibilities or burden on family
members, and the threat of permanent incapacity further
contribute to the emotional strain created by the prospect of
surgery. Less obvious concerns may occur because of previous
experiences with the health care system and the people patient
has known with the same condition.
Patient express fear in different ways. For example,
one patient may repeatedly ask a lot of questions even thoughanswers were given previously. Another person may withdraw,
deliberately avoiding communication, perhaps by reading or
watching television. Still, other may talk about trivialities.
Consequently, the nurse must be empathetic, listen well, and
provide information that helps alleviate concerns.
3. Family and Significant Others
During surgery, the significant others usually wait in a
designated lounge. If they must leave the facility for any reason
ask them for a phone number where they can be reached. Provide
the phone number of the clients unit.
When discussing surgery with significant others, be
aware of information previously given by the surgeon regardingthe immediate surgical outcome and eventual prognosis. You can
then answer questions confident the information you give agrees
with previous statements.
Prepare significant others for nasogastric tubes, chest
tubes, suction equipment, respiratory equipment, intravenous
infusions, dressings, or monitoring equipment the client may
require. Inform the significant others when the procedure is
completed. Make certain surgeon knows who is waiting for
information on the client.
Reassure significant others that the length of time the
client is gone may not reflect the actual length of surgery. There
are often unpredictable delays that might cause the client to wait
before surgery. Reassure the family if this has happened to the
client so they will not worry.
4. Patients with Special Needs
4.4 Patients with Diabetes Mellitus
Diabetes Mellitus is an endocrine disorder that affects
glucose metabolism and the production of insulin in the beta cells
o f the pancreas.
3 types:
1. Type 1. Insulin Dependent Diabetes Mellitus (IDDM)-the pancreas produces little or no insulin thus regular
administration of insulin injection is required.
2. Type 2. Non Insulin Dependent Diabetes Mellitus(NIDDM) pancreas produces varying amounts of
insulin. Onset may be at any age but usually 40 y.o. at
obese persons. Blood glucose levels are controlled by
diet and the administration of antihyperlipidemics.3. Type 3. Diabetes Mellitus associated with other
conditions or syndromes Impaired glucose tolerance
may be secondary to pancreatic or hormonal dse, drug
or chemical toxicity, abnormal insulin receptors, or
other genetic syndromes.
Special Considerations:
1. Scheduling Elective Surgical ProcedureAssessment of DM patients can minimize the potential risks:
a. Capillary Blood obtained by fingerstick for fasting serumglucose
b. Preop Insulin dose may be reduced or eliminated preventhypoglycemia and insulin shock.
c. Continuous IV Access in case of metabolic problem.i. Patients who are insulin dependent are determined bu
the severity of the disease, preop control regimen and type
of surgical procedures, insulin infusion or administered
depending on the serum glucose levels.
ii. Adequate hydration; electrolytes to maintainmetabolic status
iii. Monitor fluid intake and output to maintain hydrationwithout fluid overload.
d. Monitoring of blood glucose levels during long surgicalprocedures for hyperglycemia and hypoglycemia and
fractional urine specimens for ketones.
e. Nasogastric suctionf. Anti-embolic stockings are worn during the surgical
procedure or pre-op to prevent thrombophlebitis and
thromboembolism.
g. Guarded skin integrity to prevent sepsisi. Strict aseptic and sterile technique
ii. Foam padding and gel mattress in bony prominencesfor procedure will take 2 or more hrs to prevent pressure
sores
iii. Hyposensitive tape to affix dressings.
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4.5 Obese Patients
2 origins:
1. Endocrine Origin. Usually associated with biliary,hepatic and endocrine disorder
2. Non Endocrine Origin. Associated with excessivecaloric intake
Physiologic Dysfunctions:
Special Considerations:
GOAL: Safety precautions against injury, falls and burns.
1. Transporting and lifting the patienta. Stretchers or Operating Beds
- In moving the ppatient from the stretcher topoperating bed, wheels should be locked.
- Safety belts should be long enough to providesecure limitation of unwanted mobility.
2. Keeping exposure to minimum3. Induction, intubation and maintenance of anesthesia
-
Venous cutdown if peripheral veins are hard toaccess
- Mobility of the cervical spine to hyperextend theneck for intubation may be limited.
- Inefficient respiratory muscles, poor lung or chestwall compliance. intraabdominal muscles in the
supine position.
- Inefficient ventilation4. Positioning in the operating bed5. Increased operating time because of mechanics of the
surgical procedure.
4.6 Patient with Chronic Cardiopulmonary Illness
The goal in preparing patient for surgery is to ensure a
well- functioning cardiovascular system to meet the oxygen, fluid,
and nutritional needs of the preoperative period. If the patienthas uncontrolled hypertension, surgery may be postponed until
the blood pressure is under control.
Because cardiovascular disease increases the risk for
complications, patients with these conditions require greater-
than-usual diligence during all phases of nursing management and
care. Depending on the severity of the symptoms, surgery may be
deferred until medical treatment can be instituted to improve the
patients condition. At times, surgical treatment can be modified
to meet the cardiac tolerance of the patient. For example, in a
patient with obstruction of the descending colon and coronary
artery disease, a temporary simple colostomy may be performed
rather than a more extensive colon resection that would require a
prolonged period of anesthesia.
4.7 Pregnant Surgical Patients
Non-obstetric disease requiring surgery may
complicate pregnancy and jeopardize maternal and fetal well-
being. Surgery may be safely done if the physician is aware of
anatomic and physiologic alterations during gestation that
necessitate an altered approach to diagnosis and management.
Fetal exposure to all diagnostic and therapeutic agents should be
minimized, particularly during organogenesis. However, the risk to
the fetus of diagnostic irradiation is justifiable when information
essential to maternal health is likely to be obtained. Furthermore,
the broad range of available antibiotic, analgesic, and anesthetic
agents provide the physician with options for treatment that have
an acceptable degree of risk to fetal health. Anesthesia and
surgery are tolerated considerably better by the fetus than is
maternal hypotension, hypoxia, or sepsis. When an operative
procedure is urgently or emergently indicated, pregnancy should
not delay timely intervention.
4.8 Immuno-compromised Patients
Immuno-compromised clients are those highly
susceptible to infection, are often infected by their own
microorganisms, by microorganisms on the inadequately cleansed
hands of health care personnel, and by non-sterile items (food,
water, air and client-care equipment). Clients who are severely
compromised include those who
Have diseases, such as leukemia, that depress theclients resistance to infectious organisms.
Have extensive skin impairments, such as severedermatitis or major burns, which cannot be
effectively covered with dressings.
4.9 Patients with Severe Traumatic Disabilities
Perioperative management of the head-injured patient
focuses on aggressive stabilization of the patient and avoidance of
systemic and intracranial insults that cause secondary neuronal
injury. Secondary brain injury complicates the course of the
majority of head-injured patients, adversely influencing outcome.
The need to improve care of these patients in the field and ED has
been recognized with the development of guidelines,
improvement of emergency response services, and better training
of providers. The goals of emergency therapy in the field and ED
are to prevent and treat all secondary insults and, ultimately, to
improve outcome in patients with TBI.
THE SURGICAL ENVIRONMENT
1. Special Procedure Rooms
Operating room management is the science of how to
run an Operating Room Suite. Operational operating room
management focuses on maximizing
operational efficiency at the facility, i.e. to maximize the
number of surgical cases that can be done on a given day
while minimizing the required resources and related costs.
The act of coordinating and running all parts of a
surgical suite to accomplish a defined set of goals. An
emerging field, operating room management is increasingly
studied as how to best:
1) Ensure patient safety and optimal patient outcome
2) Provide surgeons with appropriate access to the OR
so that patients can have operations in a timely
manner
3) Maximize the efficiency ofoperating room
utilization, staff, and materials
4) Decrease patient delays, and
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5) Enhance satisfaction among patients, staff, and
physicians.
This management science as applied to the surgical
suite is gaining more attention because of increasing market
pressures on hospitals from competitors (e.g., other surgical
suites including office based surgery) and from payers seeking
lower prices. The surgical suite is often considered a profitable
hospital unit. As such, surgical suites also comprise an importantfraction of hospital budget spending. Holding patient
safety constant, the opportunity to increase financial gain through
modifying the use of already existing resources is a prime target
for managerial analysis. Incremental improvements in operating
room utilization and operating room efficiency can have major
impacts on hospital staff and finances. Some hospital
administrators perceive efficiency in the operating room as
throughput, completing the most surgical cases within budget.
2. Potential Sources of Injury to the Caregiver and the
Patient
3.1 Physical Hazards and Safeguards
The equipment in areas used for aseptic surgery should
be easy to clean and portable to simplify sanitization of the area.
The operating table should be constructed with a durable surface
material impervious to moisture which can be readily cleaned.
Plastic or stainless steel is frequently used for this purpose. Other
useful table design features which assist patient positioning
include height and tilt adjustments, V-trough configuration and
restraint strap cleats. A disadvantage of stainless steel
construction is that it predisposes animals to hypothermia. This
can be corrected by the routine use of a heating pad placed under
the surgical patient. Reusable, easy to clean vinyl heating pads
which recirculate hot water are frequently used for this purpose.
Inexpensive short-term alternatives include hot water bottles or
heat lamps. Any heat source should be used with caution to
prevent patient burns.
Instrument tables provide the surgeon ready access to
the surgical instruments and minimize the risk of sterilized
instrument contamination by contact with non-sterile fields.
Commercially available instrument tables, such as Mayo stands,
consist of a stainless steel tray supported by a pedestal base with
a foot-operated height adjustment device, but any tray
arrangement may be used for this purpose. The unit should be
easy to clean and simple to operate. The drapes in an instrument
pack frequently include impervious table covers which can
minimize instrument contamination and allow the surgeon to
reposition the table without breaking aseptic technique during
the procedure. Surgical buckets on wheels (kick buckets), which
can be readily positioned with the feet, are another
recommended piece of equipment. They should be easy to clean
and lined with a plastic bag which should be changed at the end
of the procedure.
Adequate lighting is essential for performing surgical
procedures. A variety of fixtures can be used to provide sufficient
light. The commercially available surgical light fixtures may be
ceiling or wall-mounted or free standing. Surgical lights are often
positioned above the operative area and should be regularly
wiped with a moist towel prior to use to minimize potential
contamination of the sterile field below.
3.2 Chemical Hazards and Safeguards
Exposure to various anesthetic drugs, medication or
sterilizing fluids can cause poisoning and is considered a chemical
hazard. Skin irritation or dermatosis, or irritation of the eyes,
nose, and throat can result from a latex allergy, frequent use of
soap or disinfecting liquid, or airborne aerosols. Wear proper
protective equipment to minimize exposure, utilize eye wash
fountains if needed, follow appropriate infection control, makesure your work area is well ventilated and avoid latex in case of
allergies.
3.3 Biologic Hazards and Safeguards
Infectious Waste. A waste that is capable of causing
infectious dses. It contains pathogens with enough virulence
and quantity that exposure to them could result in an
infectious dse in a susceptible host.
Factors that should be considered in deciding if something is
infectious include the following:
- The presence of pathogenic organisms insufficient numbers to be capable of causinginfection in living beings. Many microorganisms
are incapable of causing infection.
- The presence of a portal of entry into asusceptible host. A cut, needle, stick puncture
wound, or skin lesion provides portal of entry but
not living beings are susceptible hosts to
infectious dses.
Infectious waste is places in leask proof containers or bags strong
enough to maintain integrity during transport, and these bags
should be closed and either labeled or color coded.
Biohazards. OSHA defines occupational Infections as reasonably
anticipated skin, eye, mucous membrane, or parenteral contact
with blood, or other potentially infectious materials during the
course of duty. This contact includes blood, tissues, and organs,and all body fluids.
- Handwashing is a must after every patient orglove removal
- Careful Handling and adequate protection frompotentially contaminated equipment.
- Every health care facility must develop a writtenexposure control plan that includes procedures
for evaluating an incident and for determining
when exposure has occurred.
BloodBorne Disease. A penetrating injury or a splash with fluid
contaminated with body fluids.
Surgical Plume. Plume (Surgical Smoke) is generated by the
thermal destruction of tissue, or bone.
3.4 Risk Management
1. Administrationa. Regulations, recommendations, guidelines,
and laws should be enforced to prevent
disastrous consequences of occupational
hazards.
b. Policies and procedures should be written,reviewed periodically, and updated as
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the bathroom in the middle of an operation, inform the
surgeons of the situation and step out (preferably not during a
crucial part of the surgery). Be sure to scrub back in!
Prior to handwashing a mask should be worn. It should
be tied secure ensuring that it covers both the nose and
mouth. It is important that the mask is neither too loose nor
too tight and comfortable to wear, as it will be worn
throughout the procedure. A sterile gown pack should then belaid out ensuring not to touch the gown as it is sterile. A pair of
sterile gloves of the correct size should also be laid out. When
opening the packet it is essential not to touch and contaminate
the gloves.
The next step is handwashing. A comfortable water
temperature should be selected with correct flow and avoiding
splashing. One antiseptic solution should be used throughout
the procedure. There are several antibacterial skin cleansers.
The most commonly used are Providone - Iodine 2% and
Chlorhexidine Gluconate 1.5 %. If sensitivities occur these
should be reported to the senior nurse and to Occupational
Health.
The procedure for handwashing should be practicedreligiously. Hands and nails should be socially clean at the
beginning of the procedure. Hands should be kept above elbow
level so that water washes form the fingertips down to the
elbow throughout the procedure. Open the brush packet and
use the nail pick to clean under the nails. The pick should be
discarded after use. The hands and forearms are then wet and
the sponge side of the brush is used to wash from fingertips to
just above the elbow for 30 seconds per arm. The brush is used
to clean the fingernails for 30 seconds each hand. The brush
should be detached from the sponge and discarded. With the
remaining solution on the sponge the hands and arms should
be rinsed ensuring to wash form the fingertips to mid forearm
for a total of 2 minutes for each hand. Scrub between the
fingers and scrub the palms with the nails.
To finish off the hands and arms should be rinsed. Thetaps should be turned off using the elbows and allow the arms
to drip dry for a short time. Ensure that hands are kept higher
than the elbows.
The first scrub of the day should last for 5 minutes and
all subsequent scrubs should last for 3 minutes.
Once the hands are washed, use the towel provided
with the gown pack to dry the hands and forearm. Hold the
hands above the elbows and dry from the fingertips down.
When the hands are dry discard the towel. Holding the gown
from the inside open it up ensuring the gown does not make
contact with anything. Place the hands through the sleeves of
the gown but do not push the fingers through the cuffs. Using
the cuffs pick up one glove ensuring not to touch the glove with
the skin and put it on. Pull the cuff of the glove over the cuff of
the gown. Repeat the same procedure for the other hand.
Finally, ask a colleague to assist you in fastening the
gown at the back. Keep hands up at all times and do not touch
anything that is not sterile.
If you start to feel ill or faint during an operation,
immediately inform the surgeons and then step away from the
table. Do not try to hold out, since it would be a disaster if
you fainted and fell into the sterile field.
REMEMBER:
The use of gloves does not replace hand washing
Stay a safe distance away from obstacles to preventcontamination of the gown
In general, just remember: if you are sterile, do not touch
anything that's not sterile and vice versa.
Sterile areas are marked by green or blue colored drapes.
These generally include the operative field (i.e. the patient),
the scrub table (where are the instruments are kept), and the
front and sleeves of your gown.
The back of your gown and anything below the waist is
considered not sterile or contaminated. Your mask, protective
eyewear, and hat are also non-sterile.
Always wash your hands after removing your gloves.
Change your gloves between clean and dirty procedures -
even on the same patient
All disposable garbs must be removed and disposed of
into the designated garbage basket after leaving the operating
room. Non-disposable surgical gowns and scrubs must be put
into the laundry basket, usually next to the entrance.
1.3 Gowning and gloving
The purpose of gowning and gloving is to protect the health
care workers and clients from transmission of potentially
infective materials.
TECHNIQUES
Preparation
1. Check for:Which activities will be required while you are in the clients room
to determine which personal protective equipment is
required.
Arranging for the care of your other clients, if necessary.
If special handing is indicated for removal of any specimens or
other materials from the room.
Which supplies are present within the clients room and which
must be brought with you.
2. Assemble equipment and supplies:Gown; Mask; Eyewear; Clean gloves; Proper Disposable Container
Donning Procedure
3. Remove or secure all loose items, such as nametags orjewellery.
4. Perform hand hygiene.5. Apply cap to head, being sure to tuck hair under the
cap.
6. Don Facemask. Locate the top edge of the mask. The
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mask usually has a narrow metal strip along the edge.
7. Hold the mask by the top two strings or loops. Placethe upper edge of the mask over the bridge of the
nose, and tie the upper ties at the back of the head or
secure the loops around the ears. Secure the lower
edge of the mask under the chin, and tie the lower ties
at the nape of the neck.
8. Don protective eyewear9. Pick up a clean gown, and allow it to unfold in front of
you without allowing it to touch any area soiled with
body substances.
10. Slide the arms and the hands through the sleeves.11. Fasten the ties at the neck to keep the gown in place.
Have a co-worker hold or tie the waist tie of your
gown.
12. Put the hands inside the shoulders of the gown, andwork the arms partway into the sleeves without
touching the outside of the gown.
13. Open the sterile glove inside the sterile wrapper whilethe hands are still covered by the sleeves.
14. With the dominant hand, pick up the opposite glovewith the thumb and index finger, handling it through
the sleeve.
15. Lay the glove on the opposite gown cuff, thumb sidedown, with the glove opening pointed toward the
fingers. Position the dominant hand palm upward
inside the sleeve.
16. Use the nondominant hand to grasp the cuff of theglove through the gown cuff, and firmly anchor it. With
the dominant hand working through its sleeve, grasp
the upper side of the gloves cuff, and stretch it over
the cuff of the gown.
17. Place the fingers of the gloved hand under the cuff ofthe remaining glove. Extend the fingers into the glove
as you pull the glove up over the cuff.
Removing Procedure
18. Remove the first glove by grasping it on its palmarsurface just below the cuff, taking care to touch only
glove to glove. Pull the first glove completely off byinverting or rolling the glove inside out.
19. Continue to hold the inverted removed glove by thefingers of the remaining gloved hand. Place the first
two fingers of the hand inside the cuff of the second
glove while the hands are covered under the sleeves.
20. Pull the second glove off to the fingers by turning itinside out. This pulls the first glove inside the second
glove. Continue to remove the gloves, which are now
inside-out, and dispose of them in the refuse
container.
21. Have a co-worker hold or tie the waist tie of yourgown, remove the gown, making sure not touching the
contained part. Fold and roll gown down in front into a
ball, so contaminated area is rolled into the center of
gown.
22. Remove the mask, Untie the top strings, and whileholding the ties securely, remove the mask from the
face orIf side loops are present, lift the side loops up
and away from the ears and face. Discard disposable
mask in the waste container.
23. Remove Cap and Eyewear, Discard disposable cap inthe waste container.
24. Don Handwashing
2. Application of Principles of Asepsis and Sterile
Techniques
2.1 Infection
Four major categories of microorganisms cause
infection in humans: bacteria, viruses, fungi, and parasites.
Bacteria are by far the most common infection causing
microorganisms. Viruses consist primarily of nucleic acid and
therefore must enter the living cells in order to reproduce. Fungi
include yeasts and molds. Parasites live on other living
organismas. They include protozoa, such as the one that causes
malaria, helminths (worms), and arthropods (mites, fleas, ticks).
Types of Infection
Colonization is the process by which strains of microorganisms
become resident flora. In this state, the microorganisms may grow
and multiply but do not cause disease. Infection occurs when
newly introduced or resident microorganisms succeed in invading
a part of the body where the hosts defense mechanisms are
ineffective and the pathogen cause tissue damage. The infection
becomes a disease when the signs and symptoms of the infection
are unique and can be differentiated from other conditions.
Local Infection limited to a specific part of the bodywhere the microorganisms remain.
Systemic infection if the microorganisms spread anddamage different parts of the body.
Bacteremiawhen the culture of the persons bloodreveals microorganisms.
Septicemia when bacteremia results in systemicinfection.
Nosocomial Infections are classified as infectionsthat are associated with the delivery of health care
services in a health care facility (hospital- acquired
infections).
2.2 Sources of Contamination
Endogenous Source if the microorganisms that causenosocomial infections originate from the clients
themselves.
Exogenous Source if the microorganisms that causeinfection originate from the hospital environment and
the hospital personnel.
Contaminating bacteria are commonly present on thehands of anesthesia providers and found high rates of
transmission to the surgical field during operations.
All items used in the wound and on the sterile setup. Dust
2.3 Environmental Control of Microorganisms
Aseptic technique is most strictly applied in
the operating room because of the direct and often extensive
disruption of skin and underlying tissue. Aseptic technique helps
to prevent or minimize postoperative infection.
PREOPERATIVE PRACTICES AND PROCEDURES. The most
common source of pathogens that cause surgical site infections is
the patient. While microorganisms normally colonize parts in or
on the human body without causing disease, infection may result
when this endogenous flora is introduced to tissues exposed
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during surgical procedures. In order to reduce this risk, the patient
is prepared or prepped by shaving hair from the surgical site;
cleansing with a disinfectant containing such chemicals as iodine,
alcohol, or chlorhexidine gluconate; and applying sterile drapes
around the surgical site.
In all clinical settings, handwashing is an important
step in asepsis. The "2002 Standards, Recommended Practices,and Guidelines" of the Association of Perioperative Registered
Nurses (AORN) states that proper handwashing can be "the single
most important measure to reduce the spread of
microorganisms." In general settings, hands are to be washed
when visibly soiled, before and after contact with the patient,
after contact with other potential sources of microorganisms,
before invasive procedures, and after removal of gloves. Proper
handwashing for most clinical settings involves removal of
jewelry, avoidance of clothing contact with the sink, and a
minimum of 1015 seconds of hand scrubbing with soap, warm
water, and vigorous friction.
A surgical scrub is performed by members of
the surgical team who will come into contact with the sterile field
or sterile instruments and equipment. This procedure requires use
of a long-acting, powerful, antimicrobial soap on the hands and
forearms for a longer period of time than used for typical
handwashing. Institutional policy usually designates an acceptable
minimum length of time required; the CDC recommends at least
two to five minutes of scrubbing. Thorough drying is essential, as
moist surfaces invite the presence of pathogens. Contact with the
faucet or other potential contaminants should be avoided. The
faucet can be turned off with a dry paper towel, or, in many cases,
through use of a foot pedal. An important principle of aseptic
technique is that fluid (a potential mode of pathogen
transmission) flows in the direction of gravity. With this in mind,
hands are held below elbows during the surgical scrub and above
elbows following the surgical scrub. Despite this careful scrub,
bare hands are always considered potential sources of infection.
Sterile surgical clothing or protective devices such asgloves, face masks, goggles, and transparent eye/face shields
serve as barriers against microorganisms and are donned to
maintain asepsis in the operating room. This practice includes
covering facial hair, tucking hair out of sight, and removing
jewelry or other dangling objects that may harbor unwanted
organisms. This garb must be put on with deliberate care to avoid
touching external, sterile surfaces with nonsterile objects
including the skin. This ensures that potentially contaminated
items such as hands and clothing remain behind protective
barriers, thus prohibiting inadvertent entry of microorganisms
into sterile areas. Personnel assist the surgeon to don gloves and
garb and arrange equipment to minimize the risk of
contamination.
Donning sterile gloves requires specific technique sothat the outer glove is not touched by the hand. A large cuff
exposing the inner glove is created so that the glove may be
grasped during donning. It is essential to avoid touching
nonsterile items once sterile gloves are applied; the hands may be
kept interlaced to avoid inadvertent contamination. Any break in
the glove or touching the glove to a nonsterile surface requires
immediate removal and application of new gloves.
Asepsis in the operating room or for other invasive
procedures is also maintained by creating sterile surgical fields
with drapes. Sterile drapes are sterilized linens placed on the
patient or around the field to delineate sterile areas. Drapes or
wrapped kits of equipment are opened in such a way that the
contents do not touch non-sterile items or surfaces. Aspects of
this method include opening the furthest areas of a package first,
avoiding leaning over the contents, and preventing opened flaps
from falling back onto contents.
Equipment and supplies also need careful attention.
Medical equipment such as surgical instruments can be sterilized
by chemical treatment, radiation, gas, or heat. Personnel can take
steps to ensure sterility by assessing that sterile packages are dry
and intact and checking sterility indicators such as dates or
colored tape that changes color when sterile.
INTRAOPERATIVE PRACTICES AND PROCEDURES. In the operating
room, staff have assignments so that those who have undergone
surgical scrub and donning of sterile garb are positioned closer to
the patient. Only scrubbed personnel are allowed into the sterile
field. Arms of scrubbed staff are to remain within the field at all
times, and reaching below the level of the patient or turning away
from the sterile field are considered breaches in asepsis.
Other "unscrubbed" staff members are assigned to the
perimeter and remain on hand to obtain supplies, acquire
assistance, and facilitate communication with outside personnel.
Unscrubbed personnel may relay equipment to scrubbed
personnel only in a way that preserves the sterile field. For
example, an unscrubbed nurse may open a package of forceps in
a sterile fashion so that he or she never touches the sterilized
inside portion, the scrubbed staff, or the sterile field. The
uncontaminated item may either be picked up by a scrubbed staff
member or carefully placed on to the sterile field.
The environment contains potential hazards that may
spread pathogens through movement, touch, or proximity.
Interventions such as restricting traffic in the operating room,
maintaining positive-pressure airflow (to prevent air fromcontaminated areas from entering the operating room), or using
low-particle generating garb help to minimize environmental
hazards.
Other principles that are applied to maintain asepsis in the
operating room include:
All items in a sterile field must be sterile. Sterile packages or fields are opened or created as
close as possible to time of actual use.
Moist areas are not considered sterile. Contaminated items must be removed immediately
from the sterile field.
Only areas that can be seen by the clinician areconsidered sterile (i.e., the back of the clinician is not
sterile).
Gowns are considered sterile only in the front, fromchest to waist and from the hands to slightly above the
elbow.
Tables are considered sterile only at or above the levelof the table.
Nonsterile items should not cross above a sterile field.
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There should be no talking, laughing, coughing, orsneezing across a sterile field.
Personnel with colds should avoid working while ill orapply a double mask.
Edges of sterile areas or fields (generally the outerinch) are not considered sterile.
When in doubt about sterility, discard the potentiallycontaminated item and begin again.
A safe space or margin of safety is maintained betweensterile and nonsterile objects and areas.
When pouring fluids, only the lip and inner cap of thepouring container is considered sterile; the pouring
container should not touch the receiving container,
and splashing should be avoided.
Tears in barriers and expired sterilization dates areconsidered breaks in sterility.
2.4 Universal Precautions
Universal precautions refers to the practice, in medicine, of
avoiding contact with patients' bodily fluids, by means of the
wearing of nonporous articles such as medical gloves, goggles,and face shields. The practice was introduced in 198588. In 1987,
the practice of universal precautions was adjusted by a set of
rules known as body substance isolation. In 1996, both practices
were replaced by the latest approach known as standard
precautions (health care). Nowadays and in isolation, practice of
universal precautions has historical significance.
Under universal precautions all patients were
considered to be possible carriers of blood-borne pathogens. The
guideline recommended wearing gloves when collecting or
handling blood and body fluids contaminated with blood, wearing
face shields when there was danger of blood splashing on mucous
membranes and disposing of all needles and sharp objects in
puncture-resistant containers.
Universal precautions were designed for doctors, nurses, patients,
and health care support workers who were required to come into
contact with patients or bodily fluids. This included staff and
others who might not come into direct contact with patients.
Pathogens fall into two broad categories, bloodborne
(carried in the body fluids) and airborne.
Universal precautions were typically practiced in any
environment where workers were exposed to bodily fluids, such
as:
Blood Semen Vaginal secretions Synovial fluid Amniotic fluid Cerebrospinal fluid Pleural fluid Peritoneal fluid Pericardial fluidBodily fluids that did not require such precautions included:
Feces Nasal secretions Urine Vomitus Perspiration Sputum Saliva
Universal precautions were the infection control techniques
that were recommended following the AIDS outbreak in the
1980s. Every patient was treated as if infected and therefore
precautions were taken to minimize risk.
Essentially, universal precautions were good hygiene habits,
such as hand washing and the use of gloves and other barriers,
correct handling of hypodermic needles and scalpels, and aseptic
techniques.
2.5 Sterile Technique and Their Applications
Principles of Sterility
Principle Number 1: Only sterile items are used within the sterile
field.
Drapes, basins, sponges are obtained from a stock room with
sterile packages. The instruments used are sterilized and are
placed in a sterile table. Any person who holds the sterile
equipments should be very cautious to maintain sterility. One
important consideration in implementing sterility is this: IF YOU
ARE IN DOUBT ABOUT THE STERILITY OF A CERTAIN OBJECT,
CONSIDER IT UNSTERILE. Any suspected or known unsterile items
should not be placed the sterile field.
Any sterile package found in an unsterile or contaminated area is
considered unsterile.
If the actual timing or sterilization procedure is undetermined and
the nurse is unsure about the sterilization process, the
equipments sterilized with the suspected procedure are
considered contaminated.
A sterile table which has been touch or rubbed accidentally by an
unsterile person or vice versa is no longer considered sterile.
If the packaging material is broken or has missing pieces it is no
longer sterile.
Microorganisms can enter a packed sterile package when it is
damp or wet. Thus, damp packages are unsterile.
A sterile package dropped on a floor is considered contaminated.
Principle Number 2: Sterile persons are gown and gloved.
When wearing a gown, the considered sterile area is the part
where you can see in front down to the level of the sterile field.
Thus, gowns are only considered sterile in front of the chest,
sleeves above the elbow to the cuffs down to the level of the
sterile field. Certain methods should be employed in the OR:
Gowning is not done on the sterile table to avoid dripping water
onto the sterile equipments. Gloving and self-gowning should be
done in a distinct sterile surface.
http://en.wikipedia.org/wiki/Medicinehttp://en.wikipedia.org/wiki/Medical_gloveshttp://en.wikipedia.org/wiki/Goggleshttp://en.wikipedia.org/wiki/Face_shieldhttp://en.wikipedia.org/wiki/Body_substance_isolationhttp://en.wikipedia.org/wiki/Pathogenshttp://en.wikipedia.org/wiki/Bloodhttp://en.wikipedia.org/wiki/Semenhttp://en.wikipedia.org/wiki/Vaginal_secretionhttp://en.wikipedia.org/wiki/Synovial_fluidhttp://en.wikipedia.org/wiki/Amniotic_fluidhttp://en.wikipedia.org/wiki/Cerebrospinal_fluidhttp://en.wikipedia.org/wiki/Pleural_fluidhttp://en.wikipedia.org/wiki/Peritoneal_fluidhttp://en.wikipedia.org/wiki/Pericardial_fluidhttp://en.wikipedia.org/wiki/Feceshttp://en.wikipedia.org/wiki/Nasal_secretionhttp://en.wikipedia.org/wiki/Urinehttp://en.wikipedia.org/wiki/Vomitushttp://en.wikipedia.org/wiki/Perspirationhttp://en.wikipedia.org/wiki/Sputumhttp://en.wikipedia.org/wiki/Salivahttp://en.wikipedia.org/wiki/Hypodermic_needlehttp://en.wikipedia.org/wiki/Scalpelhttp://en.wikipedia.org/wiki/Scalpelhttp://en.wikipedia.org/wiki/Hypodermic_needlehttp://en.wikipedia.org/wiki/Salivahttp://en.wikipedia.org/wiki/Sputumhttp://en.wikipedia.org/wiki/Perspirationhttp://en.wikipedia.org/wiki/Vomitushttp://en.wikipedia.org/wiki/Urinehttp://en.wikipedia.org/wiki/Nasal_secretionhttp://en.wikipedia.org/wiki/Feceshttp://en.wikipedia.org/wiki/Pericardial_fluidhttp://en.wikipedia.org/wiki/Peritoneal_fluidhttp://en.wikipedia.org/wiki/Pleural_fluidhttp://en.wikipedia.org/wiki/Cerebrospinal_fluidhttp://en.wikipedia.org/wiki/Amniotic_fluidhttp://en.wikipedia.org/wiki/Synovial_fluidhttp://en.wikipedia.org/wiki/Vaginal_secretionhttp://en.wikipedia.org/wiki/Semenhttp://en.wikipedia.org/wiki/Bloodhttp://en.wikipedia.org/wiki/Pathogenshttp://en.wikipedia.org/wiki/Body_substance_isolationhttp://en.wikipedia.org/wiki/Face_shieldhttp://en.wikipedia.org/wiki/Goggleshttp://en.wikipedia.org/wiki/Medical_gloveshttp://en.wikipedia.org/wiki/Medicine -
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Stockinette cuffs of the gowns are absorbent and may retain
moisture, thus making it a suitable area for bacteria or
microorganisms to thrive in. because of the said principle,
stockinette cuffs should be inserted beneath the sterile gloves.
Principle Number 3: Tables are only sterile at Table Level
Edges and sides of the table drape are considered contaminated.
Below the table level is also considered unsterile.
Any sterile person who touches a part of the drape hanging below
the table level is considered unsterile. Any object or equipment
that drops below the table surface is considered contaminated.
In unfolding and placing a sterile drape any portion of that falls
below the table surface is unsterile and should not be moved or
touched or brought back up to the level of the table.
To prevent cords and tubing from sliding to the edge of the table,
it should be fastened with a non-sharp device or object.
Principle Number 4: Sterile Persons Touch ONLY Sterile Items
while Unsterile OR Personnel Touch Only Unsterile Items
Sterile OR personnel comes in direct contact with persons who
wears gowns and gloves only. The items that they will touch are
the sterile equipments. Any supply brought by an unsterile staff
should transfer the item in a sterile manner.
Unsterile OR personnel (circulator), should not directly come in
contact with a gowned and gloved person.
Principle Number 5: Unsterile persons avoid reaching over sterile
field and sterile persons avoid touching or leaning over an
unsterile area.
In cases where a solution has to be poured into a sterile basin, the
unsterile OR personnel should only hold the lip of the bottle over
the basin to prevent any contact with the sterile area.
To prevent the circulator from reaching over a sterile area when
pouring solutions, the scrub person places the basin and glasses
or any container for solutions near the edge of the table. This
prevents the circulator from reaching over the sterile area by just
standing near the edge of the table to fill the container with the
liquid solution.
When surgeons perspire on their brows, he or she should to turn
away from the sterile field and have the sweat removed by the
circulator.
In draping or covering an unsterile table the scrub person drops
the sterile drape at the center of the table while holding the fan-
folded drape high and standing back from the table to protect the
sterile gown.
Sterile gloves are protected by cuffing a drape. The sterile OR
personnel should place the gloved hands inside the sterile part of
the drape.
The scrub person unfolds the drape towards him or herself first to
allow him or her to move closer to the table when working on the
opposite side of the table since the first part of the unfolded
drape now protects the sterile gown.
Principle Number 6: Edges of anything that encloses sterile
contents are considered unsterile
Sterile supplies are packed. In opening sterile packages, the area
within 1 inch from the edges is considered unsterile. Supplies are
handled by the circulator. The upper portion of the package is
flapped away from the self and turns the side under. In doing so,
the end of the flaps is secured by the band of the circulator to
prevent it from dangling loosely. The other flap is pulled towardsthe circulator; hence, the contents are exposed yet away from the
unsterile hands.
To open a sterile package, the flaps on peel-open packages should
be pulled not torn. The sterile contents should be flipped and
lifted upward. The circulator should prevent the sterile contents
to slide over the unsterile edges.
When lifting contents from packages, sterile personnel should lift
the object straight up while holding their elbows high.
In cases where a sterile wrapper is used as a table cover instead of
a drape, it should cover the entire table surface. Only the interior
surface of the wrapper is considered sterile.
Sterile bottles when opened cannot be recap without
contaminating the pouring edges. Thus, all contents must be used
or in cases where there is still a solution left, it should be
discarded.
Principle Number 7: Sterile field is set-up just before a surgical
procedure
The longer a sterile item is exposed to air and environment, the
higher the possibility of contamination.
The practice of covering a sterile set-up does is not in the best
interest of the patient. Sterility cannot be guaranteed by just
covering a sterile set-up, unless it is under a constant
surveillance.
Covering and uncovering a table may contaminate the sterile
items.
Principle Number 8: Sterile areas are continuously kept in view.
Sterility cannot be guaranteed by just covering a sterile set-up,
unless it is under a constant surveillance.
Sterile persons should face the sterile area.
While waiting for the patient to come inside the OR, someone
must stay in the sterile area to maintain vigilance on the sterile
set-up.
Direct observation ensures sterility.
Principle Number 9: Sterile persons keep well within sterile area.
In draping the patient, sterile persons stay at a safe distance from
the operating table to maintain sterility.
Movements in a sterile area are done by passing with each other
back to back at a 360 degree turn.
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When a sterile person passes by an unsterile person or area, he or
she should turn back to maintain sterility.
When sterile persons pass by a sterile field or area, they face
towards it.
To prevent contamination during movements in an area, the
sterile person asks the unsterile personnel to step aside.
Movement inside the sterile area is kept at a minimum to avoid
contamination.
Sterile persons stay inside the sterile field or area.
Principle Number 10: Sterile persons keep in contact with sterile
areas to minimum.
Inside the operating room or within a sterile field the following
are strictly observed:
Sterile persons avoid leaning over sterile tables or drapes.
Sterile personnel who lean over or sit on an unsterile area is
considered contaminated.
Principle Number 11: Unsterile persons avoid sterile areas
Unsterile personnel should have the knowledge on the proximity
to the sterile field. They must be aware of their distance to the
sterile area or field to prevent contamination. A distance of at
least 1 foot or 30 cm from a sterile field should be maintained and
observed by the unsterile staff.
Unlike the sterile persons who turn their back towards the
unsterile surface, unsterile personnel (circulator) face the sterile
area (within 1 foot) when passing by to observe and maintain the
distance and to avoid touching any sterile objects.
All activity of a circulator should be kept to a minimum.
Principle Number 12: Destruction of integrity of microbial barriers
result in contamination
A sterile packages integrity is destroyed by the following
instances:
Perforation
Puncture
Strike-through soaking of moisture through unsterile or sterile
layers or vice versa.
Before opening a sterile package to be used in a certain procedure
or operation the package should be checked thoroughly beforeopening. The following principles should also be employed in
handling packages:
To prevent strike-through all sterile packages should be placed on
a dry surface.
If any part of the package becomes damp or wet it is considered
unsterile and should be discarded or re-sterilized.
Tables used for operation should be dried before draped.
If the sterile drape is soaked with a solution the wet area should
be covered with an impermeable sterile towels or drape.
Sterile items should be placed not only in clean but also in dry
areas.
In handling sterile packages, the hands should be dried first.
Air can also cause contamination. Thus, undue pressure on sterile
packs should be avoided. This prevents the ejection of sterile air
and the entry of unsterile air into the pack.
Principle Number 13: Microorganisms must be kept to irreducible
minimum
Sterilization is the process of removing ALL microorganisms
including the bacterial spores. However, not all things or area can
be sterilized. The following principles are employed to employ
sterile technique in:
Skin
Skin cannot be sterilized thus, it can be very good source of
contamination in any operation. To prevent entrance ofmicroorganism to the patients wound the following are done:
Surgical hand washing; Chemical antisepsis of the skin around the
surgical site; Gowning and gloving; Application of sterile draping.
Air
Air contains dust, droplets and shedding that may cause
contamination. Environmental control measures include:
Movement around the sterile field is kept to a minimum.; Drapes
are not flipped and fanned to avoid the spread of dusts.; Talking
inside the operating room is kept to a minimum because moisture
droplets are expelled with force into the mask when a person is
talking.
2.6 Methods of Sterilization of Instruments
Sterilization destroys all microorganisms, including bacterial
endospores.
To be effective, sterilization requires time, contact, temperature
and, with steam sterilization, high pressure. The effectiveness of
any method of sterilization is also dependent upon four other
factors:
1. The type of microorganism present. Some microorganisms are
very difficult to kill. Others die easily.
Note: Although rinsing an item with alcohol and then igniting it
with a match (flaming) sometimes is suggested as a method of
sterilization, it is not effective!
2. The number of microorganisms present. It is much easier to kill
one organism than many.
3. The amount and type of organic material that protects the
microorganisms. Blood or tissue remaining on poorly cleaned
instruments acts as a shield to microorganisms during the
sterilization process.
4. The number of cracks and crevices on an instrument that might
harbor microorganisms. Microorganisms collect in, and are
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protected by, scratches, cracks and crevices such as the serrated
jaws of tissue forceps. Finally, without thorough cleaning, which
removes any organic matter remaining on the instruments that
could protect microorganisms during the
2.7 Sterilization Process
Heat Sterilization for Prion Diseases
STERILIZATION BY STEAMGeneral Principles Steam is an effective sterilant for two reasons.
First, saturated steam is an extremely effective carrier of
thermal energy. It is many times more effective in conveying this
type of energy to the item than is hot (dry) air. In a kitchen,
potatoes can be cooked in a few minutes in a steam pressure
cooker while cooking may take an hour or more in a hot-air oven,
even though the oven is operated at a much higher temperature.
Steam, especially under pressure, carries thermal energy to the
potatoes very quickly, while hot air does so very slowly. Second,
steam is an effective sterilant because any resistant, protective
outer layer of the microorganisms can be softened by the steam,
allowing coagulation (similar to cooking an egg white) of the
sensitive inner portions of the microorganism. Certain types of
contaminants, however, especially greasy or oily materials, can
protect microorganisms against the effects of steam, thushindering the process of sterilization. This reemphasizes the need
for thorough cleaning of objects before sterilization.
CHEMICAL STERILIZATION
An alternative to high-pressure steam or dry-heat sterilization is
chemical sterilization (often called cold sterilization). If objects
need to be sterilized, but using high-pressure steam or dry-heat
sterilization would damage them or equipment is not available (or
operational), they can be chemically sterilized.
OTHER STERILIZATION METHODS
Gas Sterilization The use of formaldehyde gas for killing
microorganisms was practiced before the turn of the century. One
of the first uses of formaldehyde gas was to fumigate rooms, a
practice long since shown to be ineffective and unnecessary
(Schmidt 1899). There are, however, automatic, low temperaturesteam formaldehyde sterilizers that are effective and can be used
to process heat-sensitive instruments and plastic items. As
mentioned previously, because formaldehyde vapors are irritating
to the skin, eyes and respiratory tract, the use of formaldehyde in
this form should be limited.
Other Chemicals:
Paracetic acid (peroxyacetic acid). The acid is rapidly effective
against all microorganisms, organic matter does not diminish its
activity and it decomposes into safe products. When diluted, it is
very unstable and must be used with a specially designed
automatic sterilizer (APIC 2002). It is usually used for sterilizing
different types of endoscopes and other heat-sensitive
instruments.
Paraformaldehyde. This solid polymer of formaldehyde may be
vaporized by dry heat in an enclosed area to sterilize objects
(Taylor, Barbeito and Gremillion 1969). This technique, called
self-sterilization (Tulis 1973), may be well suited for sterilizing
endoscopes and other heat-sensitive instruments.
Gas plasma sterilization (hydrogen peroxide based). This method
can sterilize items in less than 1 hour and has no harmful by
products. It does not penetrate well, however, and cannot be
used on paper or linen. A specialized sterilizer is required for
performing gas plasma sterilization (Taurasi 1997).
3. Surgical Instrumentation
2.4 Inspecting and Testing of Instruments
Surgical instruments and devices must be properly
decontaminated and inspected to ensure their quality, and verify
their integrity. Damaged instruments may fail during a procedure
and injure the patient; and inadequately cleaned instrumentscannot be properly sterilized, which increases the risk of infection.
Central Processing technicians must learn how to properly
identify, inspect and test surgical instruments for cleanliness and
function.
Instrument inspection is a vital process that ensures that the
many instruments and medical devices that are used every day
function properly and are thoroughly cleaned so they be sterilized
effectively.
Scissor Sharpness - Using scissor test material, make several
complete cuts through the material, cutting all the way through to
the distal tip (where scissors most often dull). Red material is used
for scissors measuring 4.5" to 12" in length, while yellow material
is used for scissors measuring 3" to 4" in length. The test willindicate satisfactory sharpness. Be sure scissors cut all the way to
the tip. Scissor test material is available from Spectrum.
Needle holder Jaw Wear - Visual examinations best. Jaw wear at
the distal tips will be noticeable, needle holder jaw "tread" always
wears out and always wears out at the tip.
Kerrison Rongeur - Sharpness of a rongeur can be tested by using
a 3" x 5" index card. The rongeur should take a clean bite out of
the card.
Bone Cutter - Bone cutting rongeurs should be able to cut through
a 3" x 5" index card.
Laparoscopic Scissor - To test the sharpness, cut through a single
layer of tissue paper. The scissor should cut through cleanly.
3.5 INSTRUMENT SET ASSEMBLY
a. Instrument trays should be assembled using a
detailed photo p rocedure. Ringhandled instruments should be
placed on a stringer, instrument rack, or other means that allows
the instruments to remain in an open or unlocked position. This
will allow the sterilant contact to all surfaces. Instruments with
multi parts, such as a Balfour retractor or tonsil snare, should be
disassembled to allow all parts exposure to the sterilant.
b. Instruments placed on a stringer or rack will require
placement in such a manner to prevent damage to the
instruments and easy, orderly access by the operating room scrubnurse. The illustration below shows the proper alignment of string
instruments. The scissors can be turned in, toward the center of
the stringer, as long as the tips do not touch another instrument.
In many cases, the tips of the curved scissors will face away from
the center of the stringer to prevent damage to the curved tips.
The shorter instruments are at the end of the stringer, with the
longer toward the center. This order aids the operating room
nurse since the instruments at either end of the stringer will be
used first during the procedure, with progression to the longer
instruments as the case proceeds.
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Packaging Chapter. Double peel packs may be preferred by some
O.R.s for items packaged for use.
j. If the instrument has sharp points, tip guards can be
utilized for protection of the instrument. Commercially available
tip guards or foam sleeves can be purchased for this purpose. Tip
guards or foam sleeves should be permeable to the sterilant used
and the manufacturer's instructions followed for use. Latex tubing
should never be used for this purpose because the sterilant will
not contact the surface of the instrument.
3.6 Handling and Cleaning of Powered Instruments
The first "rule" is to always obtain and follow the
instrument/device manufacturer's written instructions for
cleaning, packaging and sterilization. This information should be
verified each time a new device is received. Without this
information, device/instrument can be damaged or not properly
cleaned. Exposure of metals to incompatible solutions can cause a
chemical and electrochemical attack called corrosion which may
be irreversible. Liquids, especially chlorides (e.g. bleach) are of
concern for stainless steel therefore, surgical instruments should
never be exposed to bleach. If exposure to saline cannot be
avoided, then the instrument should immediately be rinsed off
with sterile water.
Damage to Instruments - The life of an instrument should last
about twenty years if cared for properly. There are many causes
of damage which include:
Misuse- not used as intended by design
Abuse- (e.g.) dumping instruments, stacking
Improper cleaning, sterilization
Exposure to chemicals/detergents (e.g. saline - chlorine bleach,
blood even water).
Stainless steel will corrode and when it does, the corrosion usually
appears as surface blemishes (roughness / rust). This creates
difficulties for cleaning, disinfection and sterilization. Corrosion
can also indicate locations where future device failure can occur.
Stainless steel can corrode by pitting, crevice corrosion and stresscorrosion cracking (SCC) (also known as hydrogen cracking). This is
usually caused by exposure to blood, chloride or bromide
containing solutions. The effect is deep "pockets" or pits which
look like black holes on the surface. When pitting occurs, this
cannot be repaired, the instrument must be replaced.
Corrosion is often found in box locks and other joints of
instruments. Sometimes this appears as red rust. The cause is
usually blood and/or other soils in the joint and box lock. Any type
of corrosion interferes with proper cleaning and can inhibit the
disinfection/sterilization process. Therefore, it is important to
carefully inspect instruments for corrosion. A major factor in
corrosion is improper cleaning.
Water Quality- The quality of water can have great impact on
instrument life. It is recommended to have your water analyzed.
This should be done by your detergent manufacturer at no
charge. Mot water supplies have minerals such as sodium,
magnesium and iron present. All of these can adversely affect
cleaning as well as detergent action impacting on the life of
instrument.
How to Protect Instruments - Instruments should only be used as
intended. For example, only use dissecting scissors on tissue only
use suture scissors to cut suture, never use tubing clamps to
clamp tubings, never "dump" instruments from tray. Always keep
instruments as clean as possible while in use. At end of the
procedure, place the instruments in their specific container. If this
is a protective container, place the items in the designated
location to protect instruments from damage in transport.
Instruments should not be stacked unless they are in a rigid
container.
Protect delicate items and items with fine/sharp tips by using tip
protectors. Before using a tip protector, get the manufacturer'stechnical data verifying the tip protectors will permit penetration
of the sterilant (steam, ETO, gas plasma, etc.). Always place
heavier items on the bottom of the set and lighter items on top. It
is important to separate scopes from instruments to avoid
damage to scopes.
The use of specialty containers helps to keep delicate items in
place before and after use. Purchase of delicate instruments
should always include a specialty container to avoid unnecessary
damage.
Competencies - All individuals handling surgical instruments and
devices need to be knowledgeable in the care, handling and
processing of surgical instruments. Surgical instruments are the
extension of the surgeon's hands therefore; they must befunctional when used in the OR. Scissors should be tested for
sharpness each time they are processed. Ratchets should be
checked for tension. Finger forceps should be checked to make
sure the tips meet (approximate) and that teeth are present if
indicated.
Quality Control- All instruments should be inspected using a
lighted magnifying lamp. The device should be inspected for
cleanliness, to make sure all components are present that the
instrument works as intended, that there is no damage to the
instrument and that the instrument is the one identified for the
set (correct instrument.)
Scopes -There are two categories of scopes; rigid and flexible. The
flexible scopes are mainly used in GI/Endo (e.g. gastroscopes). The
rigid scopes include arthroscopes, cystoscopes, etc. Thisinstrumentation is very expensive. Cleaning is paramount to the
safety of the device yet by design many of these devices defy
cleaning. Therefore compliance with the device manufacturer's
written instructions is critical.
All personnel processing endoscopic instrumentation should be
trained and competencies verified.
Rigid Scopes are a critical part of the endoscopic surgery
instrument inventory. They are fragile and expensive. They
provide light and image to the surgeon therefore, they must
function as expected. The smaller the diameter of the scope,
usually the more fragile therefore careful handling is essential to
avoid damage to the small glass rods that transmit the light.
Always follow the scope manufacturer's instructions for cleaning.
Usually it is recommended to brush the distal end with soft bristle
brush and then wipe the outer surfaces of the scope and
accessories with gauze or soft cloth moistened with detergent
solution. However, this may vary with the manufacturer.
Ultrasonic cleaning is not usually recommended for scopes; the
vibrations can damage the lens seals and possibly fracture the
optical fibers.
All areas of the scope should be inspected for scratches, dents,
burns, etc. Each time the scope is processed, it should be
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inspected for image clarity. The image should be crisp, clear.
However, if the image is cloudy, discolored or hazy, this may be
caused by improper cleaning, disinfectant residue, cracked or
broken lens, presence of internal moisture or external damage to
the shaft. Rigid scopes should be stored in specialty containers to
prevent damage; there are also protective sleeves to place over
the shaft to prevent damage as well. Verify with the cope
manufacturer if these sleeves can remain on during the
sterilization process.
Today two companies manufacture rigid scope testers to identify
issues with rigid scopes before processing. They are very effective
in identifying scope problems.
Light Cables - Fiber optic light cables also require special handling.
They should be cleaned per the manufacturer's instructions using
only those detergents recommended. When preparing for
sterilization, the cables should be loosely coiled (no less than 8-
inches in diameter) to prevent damage to the glass rods.
Laparoscopic Instrumentation - provides unique challenges for
processing due to the design. This instrumentation can be
extremely difficult to clean due to the design (long shaft) and jaw
assembly. Both areas can trap debris. During surgery, the positivepressure of the insufflated abdomen can cause blood and body
fluids to flow under insulation and into channels making cleaning
difficult/impossible. Disassemble (if recommended by the
manufacturer). The use of enzymatic cleaner Alas soon as possible
after surgery is recommended. Many endoscopic instrument
manufacturers recommend the use of an ultrasonic cleaner
(however, follow the instrument manufacturers
recommendations for cleaning). Pay special attention to jaws and
channels.
For laparoscopic instruments, there are some newer technologies
to help with cleaning. Several manufacturers offer high pressure
water jets for lumens as an alternative to manually brushing and
flushing. It is important to rinse repeatedly to remove all
detergents and residues from the instruments. There are also
table-top ultrasonic lumen cleaners which adapt to the lumens ofendoscopic instruments to enhance cleaning.
Inspection - Insulated instruments require special inspection.
There is a patient safety issue associated with insulated
instruments. Repeated use/sterilization can cause the layer of
insulation covering the shaft to break down. If this occurs, minute
tears can go unnoticed during cleaning/inspection. During surgery
the defective insulation could allow 100% of the electrical current
(700oF) to flow from the defect to the patient's organs, tissue.
What is even more important to note is that the smaller the crack
the more dangerous to the patient because more current can
escape from a small hole because it is more concentrated.
Furthermore, a majority of the instrument is outside the surgeon's
visual field and therefore the defect could go unnoticed. The
patient may suffer peritonitis and even death from septicemia
(infection of the blood stream; also called blood poisoning).
Damage to the insulation will occur due to normal wear and tear,
high voltages, the cleaning and sterilization process (flash
sterilization increases damage) and contact with sharp
instruments (e.g. trocars). Therefore, it is imperative that a
comprehensive system for inspection of insulation be
implemented. This inspection should occur each time the
instrument is processed. The inspection can be done by using an
insulation tester in the processing area (reusable device) or a
single use tester that is sterile and used in the sterile field prior to
surgery.
The insulation can get damaged from dropping the instrument,
repeated sterilizations and/or placing instruments on top of other
instruments, or "dumped" into a table; therefore proper care and
handling of these instruments is essential to patient safety.
Trocars - If reusable trocars are being used, they must be tested
for sharpness each time. Identify the maximum number of uses
that would indicate re-sharpening. Observe for nicks, defects
which would interfere with passage of the scope.
Power equipment utilized by surgery includes a wide
variety utilizing different power sources. Power sources may be
electrical, either line current or battery, compressed medical
gasses, such as carbon dioxide, nitrogen, or compressed air.
Equipment powered by gasses is referred to as pneumatic or air-
powered instruments. Examples of power equipment are:
reamers, drills, screwdrivers, and saws used by orthopedic and
some neurosurgeons. Craniotomes, drills, and perforators are
used by neurosurgeons. Dermatomes are used by plastic and
general surgeons to take skin grafts, and sternal saws are used by
thoracic surgeons to cut the sternum.
Powered equipment should be cleaned and cared for
according to the manufacturer's recommendations, but under no
circumstances should a power instrument be immersed in a
solution of any kind. They should never be processed through an
ultrasonic or washer/sterilizer. The attachments used with the
equipment, however, may be processed in the same manner as
most stainless steel surgical instruments. These attachments can
include chucks, chuck keys, burr guards, hudson and trinkle
adapters, and wrenches. These attachments are all metal and will
retain a great deal of blood and debris. Close attention should be
give to ensure the power equipment and attachments are
thoroughly inspected and cleaned. All attachments must be
removed from the equipment before processing. Saw blades, drill
points, and bits should be discarded in the operating room after
the surgical procedures. These items should not be reusedbecause the sharp cutting edge cannot be guaranteed once they
have been used.
Skull perforators should be checked frequently and
sent for sharpening on a routine basis. Due to their cost and
complexity, a maintenance schedule should be established.
Disposable, single use perforators are being produced by several
vendors but the cost still remains high. Air hoses should be
inspected prior to cleaning for any damage, then washed with a
mild detergent and lukewarm water. Never immerse the cord into
any solution. If the equipment has an electrical cord, the cord may
be washed with a cloth soaked with mild detergent solution.
Other components are also cleaned in this manner, and then
wiped with a disinfectant to assure safe handling prior to
packaging.
Newer powered equipment requires no lubrication
since they are self-lubricating and are enclosed with a sealed
casing. Older equipment will require some lubrication, and this
should be done during the testing process. Pneumatic equipment
should be hooked up to compressed air and tested within the
required PSI (pounds per square inch), and the pressure never
exceeded to prevent damage to the equipment. Battery operated
power equipment may be tested also with a battery pack. If
compressed air is not provided with a wall gauge and a tank is
required to be stored in SPD, measures must be taken to secure
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the tank safely to the wall. A battery pack may also be purchased
and kept in SPD to test the battery operated equipment. Any
equipment that does not function correctly should be sent for
repair. If backup equipment is not available, a loaner piece will be
required to assure surgery cases are not cancelled. Any time
equipment malfunctions the operating room should be notified.
Sterilization by a prevacuum sterilizer is recommended
most frequently for a large majority of equipment. If gravitydisplacement sterilizers are used, the sterilization time must be
lengthened. Electrical equipment should be sterilized by ethylene
oxide to prevent damage to the electrical parts. With the variety
and complexity of power equipment available, it is recommended
that detailed cleaning, testing, and assembly procedures be
provided for the technician's use. Frequent inservices will keep
the SPD staff abreast of current changes and technology.
Remember; always follow the manufacturer's recommendations.