Multiple choice

The minute ventilation will not be increased by

  1. hypoxia

  2. exercise

  3. an increase in arterial pH

  4. an increase in arterial partial pressure of carbon dioxide
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Alveolar ventilation gives the oxygen necessary for oxidative metabolism and elucidates the CO2 produced by these metabolic processes. Therefore, it is appropriate that the main physiologic stimuli to respiration are an elevation in the PCO2 and a reduction in the PO2 (hypoxemia).

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