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. "
