Unlisted procedure, musculoskeletal system, general

A patient tells you that he has been diagnosed with coronary artery disease. You recognize this diagnosis to mean that the patient has:

a. a history of acute myocardial infarction. b. had an operation known as coronary artery bypass grafting. c. a failure of the heart to efficiently pump blood. d. narrowing of the small arteries that supply blood and oxygen to the heart.

How does exhalation occur during high-frequency jet ventilation?

A. Lung elastic recoil causes exhalation to be passive. B. Exhaled air pulses out of the lungs between inspiratory pulsations. C. Exhaled air becomes entrained with reverse oscillations. D. Exhalation relies on the development of subatmospheric pressure generated immediately following an inspiration.