单选题 After insertion of a chest tube for a pneumothorax, a client becomes hypotensive with neck vein distention, tracheal shift, absent breath sounds, and diaphoresis. The nurse suspects a tension pneumothorax has occurred. What cause of tension pneumothorax should the nurse check for?
A. Infection of the lung.
B. Kinked or obstructed chest tube.
C. Excessive water in the water-seal chamber.
D. Excessive chest tube drainage.

【正确答案】 B

【答案解析】Kinking and blockage of the chest tube is a common cause of a tension pneumothorax. Infection and excessive drainage won't cause a tension pneumothorax. Excessive water won't affect the chest tube drainage.