问题
单项选择题
The nurse is caring for a client with a fractured left femur. What signs indicate potential fat emboli ？（）
A．Increased partial pressure of arterial oxygen (PaO2), reduced sensation in left leg or foot.
B．Left leg pain, dyspnea.
C．Bradycardia, skin bruises.
D．Cyanosis, decreased PaO2.
答案
参考答案：D
解析：
Fat emboli may occur with fractures of the long bones and pelvis and may be fatal. Clinical manifestations include cyanosis, dyspnea, tachycardia, chest pain, tachypnea, apprehension, restlessness, confusion, petechiae, and decreased PaO2. Increased PaO2, reduced sensation in left leg or foot, pain in the affected extremity, skin bruises, and bradycardia aren't associated with fat emboli.
