What is the best measure of the efficiency of gas exchange in the lung?

a. PaCO2
b. VDS/VT
c. End-tidal PCO2
d. PaCO2/PETCO2


ANS: B
The dead space-tidal volume ratio (VD/VT) is a measure of the efficiency of gas exchange.

Health Professions

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What action on the part of management achieves uniformity in the office and provides a fair method of treating staff equally?

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The ________________ allows you to name someone as proxy, with the authority to make medical decisions on your behalf should you become incompetent and unable to make the decision yourself

a. living will b. health care surrogate c. health care power of attorney d. durable power of attorney

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What does "EPSDT" stand for?

What will be an ideal response?

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Which of these is a renal or intra-renal cause of acute renal failure?

A) Fluid overload and non-cardiogenic pulmonary edema B) Urine outflow obstruction due to an enlarged prostate C) Reduced renal blood flow due to shock, dehydration, or vasopressor agents D) Nephron injury from trauma, nephrotoxic drugs, or infection

Health Professions