doc4mindia
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The victim of a motor vehicle accident who was in shock is delivered to your trauma center by a rural ambulance service with the pneumatic antishock garment (PASG) in place and inflated. Blood pressure is 110/86. X-rays reveal a pelvic fracture. The use of this garment
A. Elevates blood pressure by an autotransfusion effect, with augmentation of venous return and cardiac output
B. Is not recommended for control of persistent bleeding in the setting of severe pelvic fracture
C. Increases peripheral vascular resistance
D. Expedites assessment of lower body injuries in the trauma patient
E. Should be terminated by means of prompt deflation as soon as the trauma patient reaches the emergency department
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| tess
Forum Guru
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A. Elevates blood pressure by an autotransfusion effect, with augmentation of venous return and cardiac output
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| doc4mindia
Forum Guru
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C increases peripheral vascular resistance
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| RoC
Forum Junior
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Hey ...i found this information...
When PASG is initially applied, venous return increases and results in increased cardiac output. Full inflation of all compartments to 90 mmHg produced the greatest initial rise in cardiac output, accompanied by increased afterload. With time, venous return, preload, cardiac output, and stroke volume decrease, an effect that is more pronounced if lower PASG inflation pressures are used.28-33 Mean arterial pressure (MAP) is maintained in proportion to the increase in total peripheral resistance (TPR), since aortic blood flow is reduced by 75%.34 Autotransfusion occurs to a very limited degree, and does not contribute to maintaining TPR.32, 33 Of note, one study suggested that the application and inflation of PASG resulted in impaired oxygen utilization.30
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| tess
Forum Guru
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RoC, that's really helpful!
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