bleeding, shock, poisoning.. fn brno, october 2010
DESCRIPTION
BLEEDINGTRANSCRIPT
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BLEEDING, SHOCK, POISONING..
FN Brno, October 2010
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Overview•Bleeding•Shock•Allergic reactions•Poisoning •Snake and insect bites•Diabetic emergencies
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BLEEDING
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•Arterial•Venous•Capillary
BLEEDING
•Mixed
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BLEEDING
•External
•Trauma
•Internal
•Spontaneous
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BLEEDING•Adults are 60% fluid by weight•Only 13% of this fluid is located in
bloodstream•Acute loss of 40% of the blood volume can
be fatal•Blood:
▫ 60% plasma fraction▫ 40% erythrocyte volume
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Severe bleeding – first aid•Often arterial•Apply direct pressure over wound•Raise and support injurt arm•Prevent and minimize
effects of shock
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Arterial bleed – pressure dressing
Sterile cover
Thick dressing of gauze
Bandage
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Severe bleeding - amputation
Tying of knots
Application of tourniquet
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Nosebleed•Rupture of blood vessels (sneezing,
picking, blowing the nose)•High blood pressure•Till head forward – allow the blood to
drain•Breath through mouth•Pinch the soft part of the nose, keep
pinching (10 min)•After 10 min. release the pressure
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Bleeding from the ear•Connected with trauma•Half sitting position•Head tilted to the injured side – allow
blood to drain away•Sterile dressing or a clean pad in place on
the ear •Send to hospital
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Bleeding from the mouth•Cuts the tongue, lips•Dental extraction•Blood may be inhaled into the lungs!•Sitting position, head forward•Allow blood to drain from the mouth•Place a gauze pad over the wound, hold
the pad and press on the wound for 10 min.
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SHOCK
Tissue perfusion inadequate for the metabolic needs of the patient
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Basic Physiology
1. Pump generates blood pressure
2. Pressure drives blood flow(cardiac output)….
3. Through a tight network of vesselsproviding a resistance
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SHOCK
Hypovolemic CardiogenicSeptic
AnaphylacticNeurogenic
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Hypovolemic shock•Severe bleeding – hemorrhagic shock •Loss of other body fluids
▫Burns – loss of plasma through the burned skin surface
▫Dehydration – loss of water and electrolytes due to diarrhea, vomiting
▫Ileus - Blockage in the intestine
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Hemorrhagic shockInternal bleedingBleeding from body openings • Anus: hemorrhoids
(fresh, bright red), disease or injury to the intestine (black – melena)• Urethra: bleeding from the bladder, kidneys or urethra • Vagina: pregnancy or recent childbirth, injury
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Traumatic shock•Bleeding combined with exudation into tissue, toxic effect of fragments of damaged tissue
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Hypovolemic shock•Mild
▫Loss of 10-20 % of the circulatory volume (500-1000 ml)•Moderate
▫Loss of 20-40 % of blood volume (1000 – 2000 ml)•Severe
▫Loss of more than 40 % of the circulation volume (> 2000 ml)
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Heart Rate
Blood pressure
CVP
50%30%PERCENTAGE BLOOD LOSS
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SHOCK
Hypovolemic CardiogenicSeptic
AnaphylacticNeurogenic
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Cardiogenic shock•Caused by primary failure of the heart adequate blood volume but the heart is
unable to pump the blood
Severe heart disease Heart attack (IM)
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•Pale, cold, clummy, sweating•Breathing heavily•Fast jerky /sharp pulse, BP may be low•Nauseated, confused, yawning•Concentrated or no urine
Loss of consciousness (coma)
Shock – recognised clinically
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Management of shock•Silence – no excitement: do not leave the
victim •Position: lay the victim down on a blanket•Raise and support legs to improve the
blood supply to the vital organs (autotransfusion position)
•Loosen tight clothing at the neck, chest – to reduce constriction
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Management of shock•Warmth – use a blanket, not hot/watter
bottle or other direct source of heat•Do not let the victim eat, drink, smoke •Fluids i.v. (moisten lips with a little water)•Pain relief •Transport •Monitor vital functions
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Treatment of hemorrhagic shock
•Controll of bleeding•Fluid and blood replacement•Vasopresors
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SHOCK
Hypovolemic CardiogenicSeptic
AnaphylacticNeurogenic
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•Septic – caused by bacterial toxins leading to vasodilatation
•Neurogenic - spinal cord injury
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Anaphylactic shock•Severe allergic reaction•Contact with trigger factor•Develop within seconds or minutes •Triggers: skin or airborne contact with particular material the injection of drug the sting of insect food (shrimps, peanuts)
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Anaphylactic shock•Chemicals are released to blood•Dilatation of blood vessels•Constriction of air passages
(bronchoconstriction)•Swelling of tongue, throat
Treatment: adrenalin (auto-injector)
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SHOCK
Hypovolemic CardiogenicSeptic
AnaphylacticNeurogenic
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POISONING
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Poisoning• Unintentional: result
from exposure to or ingestion of toxic substances, including drugs and alcohol, chemicals, contaminated food
• Intentional: in cases attempted suicide
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Poisoning•The effect depends on the type and
amount of substance absorbed•A poison (toxin) may cause temporary or
permanent damage •Poisons can be swallowed, absorbed
through the skin, inhaled, splashed into the eyes or injected
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Poisoning•A poison, after entering to the body, may
enter the bloodstream and be carried to all organs and tissues
•Signs and symptoms: vary with the poison (develop quickly or over a number of days)
: vomiting : local signs : systemic signs
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Swallowed poisons Drugs and alcohol, cleaning and
gardening products, plant poisons, bacterial and viral (food) poisons
Effects: nausea, vomiting, abdominal pain, seizure, irregular, fast or slow heartbeat, impaired consciousness
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Inhaled Industrial poisons, fumes from fires,
chlorine Effects: headache, confusion,
difficulty breathing, cyanosis
Absorbed through the skin
Cleaning and gardening products, plant poisons
Effects: pain, swelling, rash, redness, itching
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Splashed in the eyes Effects: pain and watering of the eye,
blurred vision, inability to open the injured eye
Injected through the skin
Venom from stings and bites, drugs Effects: pain, redness and swelling at
injection site, nausea, vomiting, difficulty breathing, seizures, anaphylactic shock
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Poisoning first aid• Identify the poison• Monitor victim• Seek medical help• Resuscitate if necessary• Help victim into fresh air • Remove contaminated clothing,
wash area for at least 10 minutes (absorption through the skin)
• Irrigate the eye
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Alcohol poisoning•Depresses the activity of the central
nervous system•Impairs all physical and mental functions•Risks from alcohol poisoning:
▫inhaling and choking on vomit▫loosing heat, hypothermia▫underlying condition often
misdiagnosed
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Alcohol poisoning•First aid: - cover the person with a coat to protect
from the cold - asses the person for any injuries - monitor and record vital signs (level of
response, pulse, breathing) - if unconsciouss – recovery position
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Drug poisoning
•Prescribed•Over the counter•Drug abuse
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Drug poisoning – NS depressants
•Unconsciousness, shallow breathing, weak or abnormally slow or fast pulse
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Drug poisoning- Stimulants and hallucinogens •Stimulants and
hallucinogens (amphetamines - Ectasy , LSD, cocaine):
•Excitable, hyperactive behavior, wildness, sweating, tremor of the hands, hallucinations
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Food and fungi poisoning
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Food and fungi poisoning•Common•Symptoms may develop rapidly (within
2-6 hours): nausea, vomiting, abdominal pains, headache, fever
mushrooms: vomiting, severe watery diarrhea, hallucinations, poisoning may be fatal
•Danger: dehydration liver failure
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Poisoning – hospital management
•Support ABC•Induce vomiting •Orogastric lavage•Activated charcoal •I.v. fluid replacement•Special antidotes
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BITES AND STINGS
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Insect sting
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Insect stingSting from a bee, wasp or hornetRecognition: pain at the site of sting, swelling, rednessSting in the mouth or throat – swelling can
obstruct the airwaySerious reaction - anaphylactic shockFirst aid :
raise the affected part apply an ice pack or cold
compress
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Bites
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Bites•Bites from certain species of scorpions
and spiders, snakes (vipers, exotic snakes), sea creatures
•Bites in the mouth or throat are dangerous because swelling can obstruct the airway
•Be alert to an allergic reaction•Can cause serious illness and may be
fatal (spiders, snakes)
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Bites – First aid
•Raise the affected part •Apply an ice pack or cold compress•Wash the wound, compression bandage
above the wound•Immobilize•Note the snakes
appearance
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DIABETIC EMERGENCIES
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Diabetic emergences•Hypoglycemia –
low blood sugar
•Hyperglycemia – high blood sugar
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Hypoglycemia•Develops quickly – over few hours•Weakness, hunger/nausea•Swaeting, cold, clummy•Strange behaviour
•FA : sugary drink, sweet food
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Hyperglycemia•Develops slowly – over days•Weakness•Warm, dry skin•Drowsiness
•FA :transport ho hospital
If in doubt- give sugary drink – little harm in hyperglycemia
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Questions ?
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