A client with shock brought on by hemorrhage has a temperature of 97.6°F (36.4℃), a heart rate of 140 beats/minute, a respiratory rate of 28 breaths/minute, and a blood pressure of 60/30 mmHg. For this client the nurse should question which physician order（）
A. "Monitor urine output every hour. "
B. "Infuse IV fluids at 83 mL/hr"
C. "Administer oxygen by nasal cannula at 3 L/min"
D. "Draw samples for hemoglobin and hematocrit every 6 hours. "
参考答案：B
解析：
Because shock signals a severe fluid volume loss (700 to 1300 mL) its treatment includes rapid IV fluid replacement to sustain homeostasis and prevent death. The nurse should expect to administer three times the estimated fluid loss to increase the circulating volume. An IV infusion rate of 83 mL/hr wouldn’t begin to replace the necessary fluids and reverse the problem. The other options are appropriate for this client.