Under which of the following conditions would you postpone a…

Under which of the following conditions would you postpone a diffusing capacity test?I. Just before the test, the patient smoked two cigarettes.II. Just before the test, the patient had an episode of severe coughing.III. Just before the test, the patient had a long wait at a busy bus stop.

You perform a series of pulmonary function tests on a patien…

You perform a series of pulmonary function tests on a patient with a potentially infectious disease carried via the airborne route. Which of the following infection-control procedures should you implement?I. Wear a respirator or close-fitting surgical mask.II. Dispose of, sterilize, or disinfect the tubing circuit after testing.III. Clean the interior surface of the spirometer before the next test.