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How Low Must the Partial Pressure of Arterial Oxygen (PaO₂)

Question 11

Multiple Choice

How low must the partial pressure of arterial oxygen (PaO₂) drop before the peripheral chemoreceptors influence ventilation?

A) Below 100 mmHg
B) Below 80 mmHg
C) Below 70 mmHg
D) Below 60 mmHg

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