EMT Exam Dumps | What components are necessary to maintain adequate perfusion? Select the three correct options.

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Question 14/31

What components are necessary to maintain adequate perfusion? Select the three correct options.

A. Hypoxic drive

B. Patent airway

C. Intact microcirculation

D. High alveolar pressure

E. Sufficient blood volume

F. Low ventilation-perfusion ratio

Correct Answer: B,C,E

Comprehensive and Detailed Explanation From Exact Extract:
Perfusionrefers to delivery of oxygen and nutrients to tissues. It depends on three essential components:
* Patent airway: Ensures oxygen reaches lungs
* Intact microcirculation: Capillary-level exchange must function
* Sufficient blood volume: Maintains blood pressure and oxygen transport Hypoxic drive relates toCOPD physiology, not perfusion.High alveolar pressure(like from CPAP) may impede venous return, and alow ventilation-perfusion ratiomeans poor oxygenation efficiency, which negatively affects perfusion.
References:
NREMT Cardiovascular and Shock Guidelines
National EMS Education Standards - Perfusion and Circulatory Assessment AHA ACLS Provider Manual - Systemic Perfusion Concepts

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