Which of the following indicate severely impaired oxygenation requiring high FiO2s and positive end expiratory pressure?
1. PaO2–PaO2 greater than 350 mm Hg on 100% O2
2. VC less than 10 ml/kg
3. PaO2/FiO2 less than 200
4. PaCO2 greater than 45 mm Hg
a. 1 and 4 only
b. 1 and 3 only
c. 2 and 3 only
d. 1, 2, and 4 only
ANS: B
Health Professions
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