Which of the Following Is Correct Regarding Acclimatization

question 50

Multiple Choice

Which of the following is correct regarding acclimatization?

• A) At high altitudes, hemoglobin's affinity for O₂ is increased because BPG concentrations increase.
• B) High-altitude conditions always result in lower-than-normal hemoglobin saturation levels because less O₂ is available to be loaded.
• C) Decreases in arterial PO₂ cause the peripheral chemoreceptors to become less responsive to increases in PCO₂.
• D) When blood O₂ levels decline, the kidneys produce more erythropoietin, which stimulates breakdown of red blood cells in the spleen.

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