PATHOLOGY MCQ
HAEMOPOIETIC SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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This physiologic (meaning normal) polycythemia is a normal adaptation to living at high altitudes known as ____
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Hypoxia
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Altitude sickness
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Decompression sickness
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Allergy
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Explanation:
Detailed explanation-1: -High altitude polycythemia (HAPC) is a common chronic disease at high altitude, which is characterized by excessive erythrocytosis (females, hemoglobin ≥ 190 g/L; males, hemoglobin ≥ 210 g/L).
Detailed explanation-2: -Altitude sickness caused by an increase in pulmonary artery pressure due to the normal pulmonary vasoconstriction induced by hypoxia. Hypoxia leads to increase oxygen delivery to the tissues and increases ventilation, cardiac output and haemoglobin concentrations.
There is 1 question to complete.