The ventilatory response to hypoxia:: (A) Is independent of PaCO2, (B) Is more dependent on aortic than carotid chemoreceptors, (C) Is exaggerated by hypoxia of the medullary chemoreceptors, (D) Bears an inverse linear relationship to arterial oxygen content
Answer is D. Ans. D. Bears an inverse linear relationship to arterial oxygen contentAn inverse relationship exists between hypoxia-induced hyperventilation and oxygen content. Hypoxia-induced hyperventilation is dependent on PaCO2 and more on carotid than aortic chemoreceptors.