Which of the following laboratory findings is most consistent with hypoxia due to acute respiratory distress syndrome (ARDS)?
AIncreased PaCO2 with decreased pH
BIncreased A-a gradient
CDecreased PaO2 with normal PaCO2
DNormal A-a gradient
Which of the following is the common cause of respiratory failure type 2 ?
AChronic bronchitis exacerbation
BAcute attack asthma
CARDS
DPneumonia
A patient with acute pulmonary embolism is found to have hypoxia. What is the most likely mechanism causing hypoxia in this condition?
AHypoventilation
BDiffusion impairment
CVentilation-perfusion mismatch
DShunt
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