A nurse is caring for a client who is 3 hr postoperative following abdominal surgery. Which of the following assessment data should the nurse report to the provider?

A. Serosanguineous drainage is common in the early postoperative period and is not typically a cause for concern unless it increases significantly or shows signs of infection. B. Urine output of only 50 mL over 3 hours is well below the expected minimum (typically ≥30 mL/hr) and may indicate hypovolemia or impaired renal perfusion. This finding should be reported to the provider promptly. C. A reduction in pain after administration of morphine is an expected and appropriate therapeutic response. D. Hemoglobin of 15% and hematocrit of 40% are within normal limits for most adults and do not require immediate action.