Neco Model Questions Vol1 2019 Biology Question 38
Practice objective / multiple choice question 38 from the 2019 Neco Model Questions Vol1 Biology examination.
At sea level a person has a hemoglobin concentration of 15 g dL\(^{-1}\), arterial oxygen saturation of 97 % and a cardiac output of 5 L min\(^{-1}\). Oxygen delivery ( \( \text{DO}_2 \) ) can be approximated by \( \text{DO}_2 \propto \text{CO} \times \text{Hb} \times \text{SaO}_2 \). At high altitude the arterial saturation falls to 70 % and cardiac output can increase by at most 10 %. To maintain the same \( \text{DO}_2 \) as at sea level, by what factor must the hemoglobin concentration increase? Give your answer to two decimal places.
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This is Neco Model Questions Vol1 2019 Biology Question 38. It is one of the objective questions from the 2019 Neco Model Questions Vol1 Biology examination.
Difficulty level: Hard .
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