In NREM sleep, the O2 response is:

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Multiple Choice

In NREM sleep, the O2 response is:

During NREM sleep, the control of breathing shifts so that sensitivity to CO2 is reduced, but the oxygen-triggered drive to breathe remains essentially intact. The peripheral chemoreceptors monitoring arterial PO2 continue to respond to hypoxemia, so the ventilatory response to falling O2 is similar to wakefulness. In other words, the magnitude of the O2-driven ventilatory reflex does not significantly change in NREM sleep, making “Same as wake” the best description.

During NREM sleep, the control of breathing shifts so that sensitivity to CO2 is reduced, but the oxygen-triggered drive to breathe remains essentially intact. The peripheral chemoreceptors monitoring arterial PO2 continue to respond to hypoxemia, so the ventilatory response to falling O2 is similar to wakefulness. In other words, the magnitude of the O2-driven ventilatory reflex does not significantly change in NREM sleep, making “Same as wake” the best description.

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