KROK 1 2007 – Question 40 · KROK (Medicine) · Pathophysiology
A group of mountain climbers went through the blood analysis at the height of 3000 m. It revealed decrease of HCO3 to 15 mmol/l (standard is 22-26 mmol/l). What is the mechanism of HCO3 decrease?
- A. Decrease of bicarbonate reabsorption in kidneys
- B. Decrease of ammoniogenesis
- C. Hyperventilation
- D. Intensification of acidogenesis
- E. Hypoventilation
Hint
Think about how the thin air at altitude changes the breathing pattern, what happens to CO₂ and blood pH as a result, and what bicarbonate does then.
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