To maintain proper cuff pressure of an endotracheal tube (ET) when the patient is on
mechanical ventilation, the nurse should
a. inflate the cuff with a minimum of 10 mL of air.
b. inflate the cuff until the pilot balloon is firm on palpation.
c. inject air into the cuff until a manometer shows 15 mm Hg pressure.
d. inject air into the cuff until a slight leak is heard only at peak inflation.