问题
单项选择题
Which of the following signs and symptoms would alert the nurse to possible internal bleeding in a client who has undergone pulmonary lobectomy
A．Increased blood pressure and decreased pulse and respiratory rates.
B．Sanguineous drainage from the chest tube at a rate of 50 mL per hour during the past 3 hours.
C．Restlessness and shortness of breath.
D．Urine output of 180 mL during the past 3 hours.
答案
参考答案：C
解析：Restlessness indicates cerebral hypoxia due to decreased circulating volume. Shortness of breath occurs because blood collecting in the pleural space faster than suction can remove it prevents the lung from reexpanding.