NCAA CPL Human Performance Practice Questions - NCAA CPL Human Performance (Nigeria) Exam

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Why does alcohol consumption shortly before flight induce histotoxic hypoxia even when operating at sea level with 100% oxygen available?

Alcohol lowers atmospheric partial pressure of oxygen in the alveolar sacs Alcohol destroys hemoglobin molecules, preventing oxygen binding Alcohol restricts arterial blood vessels, stopping blood flow to the brain Alcohol poisons body tissue cells, rendering them unable to utilize delivered oxygen

Correct Answer:

Alcohol poisons body tissue cells, rendering them unable to utilize delivered oxygen

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