The pulmonary diffusion capacity of the carbon monoxide test is used to:
a. assess the patient's blood carbon monoxide level.
b. remove carbon monoxide from the patient's blood.
c. measure the residual volume.
d. assess the alveolar-capillary membrane.
D
Alveolar-capillary membrane function is measured by the pulmonary diffusion capacity of the carbon monoxide test. A very small amount of carbon monoxide (CO) is inhaled by the patient to perform the test. But the CO level is not measured in the blood, and CO is not removed from the blood.
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