A nurse on a rehabilitative unit is caring for a 65-year-old female client who is postoperative following knee arthroplasty. The nurse is evaluating the client. Select the 2 findings that require immediate follow-up.

The correct answers are B and C. For a postoperative client following knee arthroplasty, immediate follow-up is needed for urinalysis (B) to monitor for signs of infection or other urinary issues. Report of sensation upon urination (C) is crucial as it can indicate urinary retention or infection. Monitoring oral fluid intake (A) is important but not as urgent as B and C in this context. Checking the color of urine (D) is also important but does not require immediate follow-up compared to B and C.