If the pulmonary capillary partial pressure of a gas equilibrates with that in the alveolus before...

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Medical Sciences

If the pulmonary capillary partial pressure of a gasequilibrates with that in the alveolus before the blood leaves thecapillary (gas diffusing from the alveolar space to thecapillary):

a. its transfer is said to be perfusion limited

b. its transfer is said to be diffusion limited

c. increasing the cardiac output will not increase the amount ofof gas diffusing across the alveolar-capillary barrier

d. increasing the alveolar partial pressure of the gas will notincrease the amount of the gas diffusing across thealveolar-capillary barrier

e. None of the above

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3.8 Ratings (732 Votes)
Ans a its transfer is said to be perfusion limited Because as partial press of gas becomes equal in alveoli and pulmonary capillary before leaving the alveoli that means pressure gradient of gas is not a    See Answer
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