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A 5-month-old infant is admitted to the hospital for evaluation because of repeated episodes of sleep apnea.During a ventilatory response test, his ventilation did not increase when PaCO2 was increased, but decreased during hyperoxia.Which of the followin

A 5-month-old infant is admitted to the hospital for evaluation because of repeated episodes of sleep apnea.During a ventilatory response test, his ventilation did not increase when PaCO2 was increased, but decreased during hyperoxia.Which of the following is the most likely cause of this infant’s apnea?
A.Bronchospasm
B.Decreased irritant receptor sensitivity
C.Dysfunctional central chemoreceptors
D.Peripheral chemoreceptor hypersensitivity
正确答案：Dysfunctional central chemoreceptors

标签：生理学

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