A nurse is caring for a client who is 8 hours postoperative following abdominal surgery. Which of the following data should the nurse report to the provider?

Postoperative laboratory results are WBC are 8.000 (5.000-10,000)

The client urine output has been 50 mL since surgery.

Small amount of serosanguineous drainage noted on the abdominal dressing

The client's pain level has decreased since the administration of morphine.