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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angina pectoris aortic stenosis tetralogy of Fallot angina stenosis
Which position would be most appropriate for an alert and oriented patient complaining of shortness of breath?
A) Prone B) Supine with the head elevated C) Supine with the feet elevated D) Left lateral recumbent position