It is a good idea for the applicant to practice interview skills with his or her instructors or in front of a mirror.

Why does increasing the FIO2 of a patient who has severe hypoxemia from capillary shunting have no effect on the patient's oxygenation?

A. because capillary shunting affects the PaCO2 more than it does the PaO2 B. because a large amount of the patient's ventilation is wasted C. because most of the ventilation enters normal alveoli in the apices where saturation is already 100% D. because gas exchange does not occur in alveoli devoid of perfusion

Which of the following complications has been associated with the use of PEEP in patients with ARDS?

a. Lung infection b. Reduced cardiac output c. Hepatic failure d. Myocardial infarction