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?

Choice A reason: Confirming the continuous passive motion device is intact is important but secondary to assessing the source of the drainage.Choice B reason: Withholding the next dose of low molecular weight heparin should only be done based on a healthcare provider's order after assessing the situation.Choice C reason: Determining if the wound drainage device is functioning correctly is essential to manage the excessive drainage and ensure that there is no blockage or malfunction.Choice D reason: Monitoring the client's WBC count is important for detecting infection but is not the immediate action required for managing active drainage.