position change as a nursing maneuver body positioning is one of the general kinds of nursing...
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POSITION CHANGE AS A POSITION CHANGE AS A NURSING MANEUVERNURSING MANEUVER
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Body positioning is one of the general kinds of Body positioning is one of the general kinds of nursing actions during care of patients.nursing actions during care of patients.
Critically ill patients positioning maximizes Critically ill patients positioning maximizes ventilation to improve oxygenation which in ventilation to improve oxygenation which in turn would affect the individual’s ability to turn would affect the individual’s ability to maintain an internal environment that allows maintain an internal environment that allows normal cellular function normal cellular function
The critical care nurse plays a crucial role in the The critical care nurse plays a crucial role in the assessment, diagnosis, and management of assessment, diagnosis, and management of
patients with respiratory problems who develop patients with respiratory problems who develop hypoxemia. hypoxemia.
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Studies related to the adequate duration in each Studies related to the adequate duration in each position and the frequency of turning patients position and the frequency of turning patients for maimizing ventilation to improve systemic for maimizing ventilation to improve systemic
oxygenation has not been attemptedoxygenation has not been attempted
The importance of The importance of the effect of body the effect of body position on position on ventilatory ventilatory function and gas function and gas exchange has been exchange has been appreciatedappreciated
Less information is Less information is available available concerning the concerning the effect of position effect of position change on gas change on gas exchange in human exchange in human body body
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To determine the effect of To determine the effect of position change on position change on oxygenation and respiratory oxygenation and respiratory mechanics in mechanically mechanics in mechanically ventilated patientsventilated patients
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MATERIALMATERIAL
SettingSetting
Critical care Critical care units of the Main units of the Main University University Hospital in Hospital in Alexandria.Alexandria.
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SubjectsSubjects
Adult patients with Adult patients with respiratory problems respiratory problems receiving mechanical receiving mechanical ventilatory support ventilatory support were studied. They were studied. They were aged from 16 to were aged from 16 to 70 years.70 years.
Intern nurses were Intern nurses were trained to help the trained to help the researcher in researcher in turning patients, turning patients, four at a timefour at a time
30304848
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Patients were classified Patients were classified to four groupsto four groups
Normal
lungs
Bilateral lung
diseaseRight lung Right lung
diseasedisease
left lung
disease
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Patients excluded from the study
Low Low hemoglobinhemoglobin
ArrhythmiArrhythmiaa
Facial Facial
surgerysurgery
Skeletal Skeletal deformitydeformity
Head or Head or spine injuryspine injury
obesityobesity
AbdominalAbdominal distensiondistension
Carbon monoxide poisoning,Carbon monoxide poisoning, pulmonary hemorrhage,pulmonary hemorrhage,
pulmonary abscess. pulmonary abscess.
hyperthermiahyperthermia
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METHODSMETHODS
*HD, ABG, RM were evaluated immediately before and every half-hour after turning patient for a total of 6 hours for each patient
*Patients were turned to left, prone, right, supine position respectively
*Researcher trained nurses to help in patient turning
* Instructions were given about how to turn the ventilated patients in the proper way
Nurses’ instructionsPatients positioning
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##General characteristics General characteristics of the study sampleof the study sample
##Effects of turning onEffects of turning on
Results Results werewere
Oxygenation Respiratory Respiratory
mechanicsmechanics
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Distribution of patients by ageDistribution of patients by age
10%
23%
30%
37%
20-40
40-60
>60
<20
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63%
37%
malefemale
Distribution of patients by Distribution of patients by sexsex
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Position change and hemodynamicPosition change and hemodynamic
0
10
20
30
40
50
60
70
80
90
100
110
120
B.L.P 0.5 L.L.P 1 L.L.P 1.5 L.L.P 0.5 P.P 1 P.P 1.5 P.P 0.5 R.L.P 1 R.L.P 1.5 R.L.P 0.5 S.P 1 S.P 1.5 S.P
HRSBPDBPMAP
B.L.P=Base line position L.L.P=Left lateral position
P.P= Prone position R.L.P=Right lateral position
S.P= Supine position
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Position change and respiratory Position change and respiratory mechanicsmechanics
0
5
10
15
20
25
30
35
40
45
B.L.P 0.5 L.L.P 1 L.L.P 1.5 L.L.P 0.5 P.P 1 P.P 1.5 P.P 0.5 R.L.P 1 R.L.P 1.5 R.L.P 0.5 S.P 1 S.P 1.5 S.P
PIPPpLCstatCdynR
B.L.P=Base line position L..L.P= Left lateral position
P.P= Prone position R.L.P= Right lateral position
S.P= Supine position
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Position change and arterial blood gasesPosition change and arterial blood gases
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
320
340
B.L.P 0.5L.L.P 1L.L.P 1.5L.L.P 0.5P.P 1 P.P 1.5 P.P 0.5R.L.P 1R.L.P 1.5R.L.P 0.5 S.P 1 S.P 1.5 S.P
Paco2Sao2pHHco3Pao2/Fio2Pao2
B.L.P=base line position L.L.P=Left lateral position
P.P=Prone position R.L.P=Right lateral position
S.P=Supine position
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position changes had a significant effect on
oxygenation in mechanically ventilated patients
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The improvement in arterial blood gases depends The improvement in arterial blood gases depends on site and extent of lung pathologyon site and extent of lung pathology
NormalNormal
lungslungs
BilateralBilateral
diseasedisease
UnilateralUnilateral
diseasedisease
ABG are improved in all positions ABG are improved in all positions
The best position is prone The best position is prone
The subsequent are right and then leftThe subsequent are right and then left
The same improvement in duration andThe same improvement in duration and
frequency but less than in normal lungfrequency but less than in normal lung
Are improved with the good lung down Are improved with the good lung down
Are worsened with the affected lung downAre worsened with the affected lung down
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In bothIn both
Healthy
lungs
Diseased lungs
Prone and side lying positions enhance
the efficiency of O2 transport
and thereby minimize or avoid use of high
concentration of supplemental oxygen
and positive end expiratory pressure.
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body positioning isbody positioning is
a 24-hours concerna 24-hours concern
For any For any critically ill critically ill
patientpatient
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Patients with normal Patients with normal lungs and patients with lungs and patients with bilateral lung diseasebilateral lung disease
Turn
Left
1.5 hr
Prone
1.5 hrRight
1.5 hr Supine
1.5 hr
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Patients with right lung Patients with right lung diseasedisease
Turn
Left
1.5 hr
Prone
1.5 hr Right
0.5hr
Supine
1.5 hr
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patients with left lung patients with left lung diseasedisease
Turn
Prone
1.5 hr Right
1.5 hr Supine
1.5 hr
No left
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Position change is aPosition change is a simple simple way to reduce shunting and way to reduce shunting and improve oxygenation improve oxygenation
It allows reduction in FIOIt allows reduction in FIO2 2
and PEEP and reducing their and PEEP and reducing their complicationscomplications
*do your patients
a good turn
*Try the position
changes early in
the course of
illness
*do your patients
a good turn
*Try the position
changes early in
the course of
illness Turning a critically ill Turning a critically ill patients is not difficult. It patients is not difficult. It requires four trained nursesrequires four trained nurses
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More studies are neededto evaluate
Using
larger
sample
Frequent Frequent
cyclescycles
using
different
duration
Steep position
Other range Other range of positionsof positions
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Hospital
administration
Schools of
nursing
CriticalCritical
care unitscare units
*pre-service*pre-service training training programs (for newly critical programs (for newly critical
care nurses)care nurses)*in-service*in-service training programs training programs
(for already critical care (for already critical care nurses) nurses)
Books and scientific Books and scientific magazinesmagazines
The care of critically ill The care of critically ill patients in their programspatients in their programs
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TurnTurn TurnTurn
TurnTurn TurnTurn
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