Moderate
Oxygen affinity is increased by all except_________________?
Correct answer: B. Hypoxia
- A. Alkalosis
- B. Hypoxia
- C. Increased HbF
- D. Hypothermia
Explanation
Alkalosis, hypothermia and HbF increase haemoglobin's oxygen affinity by shifting the dissociation curve to the left. Hypoxia generally promotes a right shift through increased 2,3-BPG, so it is the exception.
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