Which of the following gonadal radiation doses may cause permanent sterility in a male human?

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.

According to the aerosolized medication therapy protocol, the respiratory therapist may select medications from all of the following categories EXCEPT _____ agents

a. antiinflammatory b. sympathomimetic c. parasympatholytic d. antimicrobial