A total joint replacement program is adding one outcome measure.

Within the Health Data Analytics domain, NAHQ distinguishes among structure, process, and outcome measures. Outcome measures reflect the result of care on patient health, which is essential for evaluating the effectiveness of a total joint replacement program.

The surgical site infection (SSI) rate directly measures a clinical outcome affecting patient safety, recovery, and cost. Board certification (Option A) is a structure measure, while preoperative bathing and medication reconciliation compliance (Options C and D) are process measures. Therefore, SSI rate is the most appropriate outcome measure, making Option B correct.