A pilot making a blood donation in order to help a sick associate should be aware that for several weeks
A
sufficient oxygen may not reach the cells in the body.✓ Correct Answer
B
fewer oxygen molecules will be available to the respiratory membranes.
C
the ability of the body tissues to effectively use oxygen is decreased.
Explanation
PHAK notes that donating blood reduces the blood's oxygen-carrying capacity for several weeks (hypemic, or anemic, hypoxia), so enough oxygen may not reach the body's cells. It does not change the oxygen available in the lungs, and reduced ability of tissues to use oxygen is histotoxic hypoxia.
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