The nurse assesses a client who had bilateral total knee replacements (TKR) four hours ago. The nurse notes that the dressing on the client's right knee is saturated with serosanguineous drainage. Which action should the nurse implement?

Monitor the client's current white blood cell count (WBC).

Determine if the wound drainage device is functioning correctly.

Withhold next scheduled dose of low molecular weight heparin.

Confirm that the continuous passive motion device is intact.