Which of the following measures are useful indicators in assessing the adequacy of a patient's oxygenation? 1. PaO2–PaO2 2. PaO2-to-FiO2 ratio 3. VD/VT 4. Pulmonary shunt

a. 1 and 2 only
b. 1 and 3 only
c. 2 and 3 only
d. 1, 2, and 3 only

ANS: A

Health Professions

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The primary function of macrophages and neutrophils is phagocytosis

Indicate whether the statement is true or false

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