List the three layers of the skin

Pulse oximetry is used to:

A. assess the amount of oxygen saturated in the red blood cells. B. provide supplemental oxygen to the patient. C. assess how much oxygen the patient requires. D. eliminate carbon dioxide from the bloodstream.

Which of the following modes of lung expansion therapy is physiologically most normal?

a. Continuous positive airway pressure b. Incentive spirometry c. Positive end expiratory pressure d. Intermittent positive-pressure breathing therapy