The major sign of hypoventilations_____________?
Correct answer: B. Hypercapnia
- A. Cyanosis
- B. Hypercapnia
- C. Dyspnea
- D. Hypoxia
Explanation
Hypoventilation reduces CO₂ elimination, so arterial CO₂ rises and hypercapnia is the defining biochemical abnormality. Hypoxaemia may also occur, but it is less specific because it can result from several other disorders.
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