After a Stab Wound to the Chest, a Client Develops

Multiple Choice

After a stab wound to the chest, a client develops a pneumothorax and has a chest tube inserted in the emergency room (ER) that is connected to a self-contained underwater-seal drainage system (pleur-evac) . Select the action the ER nurse should take first when she notices that the second chamber has stopped bubbling.

A) Remove any blockages from the drainage tube.
B) Tape all connections to eliminate leaks in the system.
C) Change out the drainage system because the first one is obviously defective.
D) Increase the suction to 120 mm Hg negative pressure.