During acclimatization to high altitude all of the following take place except
Correct Answer: Shift in the oxygen dissociation curve to the left
Description: At high altitude there can be acute changes and changes due to acclimatization.
Acute mountain sickness
Dyspnoea, dizziness, tiredness, tachycardia, palpitation, nausea, vomiting etc.
At higher altitudes- pulmonary edema and cerebral edema may occur.
Acclimatization changes
Hyperventilation leading to respiratory alkalosis
Increased 2,3DPG- Hb-O2 dissociation curve shifts to right.
Increased erythropoietin leading to absolute polycythemia
Increased renal excretion of bicarbonate
Increased tissue vascularity
Increased oxidative metabolism
Increased diffusion capacity of lung
Increased myoglobin
Category:
Physiology
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