The purpose of pursed-lip breathing is to promote which of the following? a. Carbon dioxide excretion b. Carbon dioxide retention c. Oxygen excretion d. Oxygen retention Which of the following actions...

The purpose of pursed-lip breathing is to promote which of the following?

a. Carbon dioxide excretion

b. Carbon dioxide retention

c. Oxygen excretion

d. Oxygen retention

Which of the following actions by the nurse is appropriate when vigorous bubbling is noted in the suction control chamber of a chest drainage system?

a. Check the tubing for leaks.

b. Notify the physician.

c. Reduce the level of wall suction.

d. Clamp the chest tube.