A nurse is caring for a client who is 4 hr postoperative following a total hip arthroplasty. Which of the following actions should the nurse take?

Rationale: A. Encourage the client to use an incentive spirometer every 4 hr: While using an incentive spirometer helps prevent postoperative pulmonary complications such as atelectasis, the immediate priority after a total hip arthroplasty is preventing hip dislocation. Pulmonary care is important but does not directly address the mechanical risk to the surgical site. B. Place a pillow between the client's legs: Placing a pillow between the legs helps maintain proper hip alignment and prevents adduction of the operated leg, which reduces the risk of hip dislocation. Proper positioning is a critical intervention during the first several hours postoperatively and is essential for protecting the surgical site and supporting recovery. C. Maintain the client on bed rest for 12 hr: Prolonged strict bed rest is not recommended after a total hip arthroplasty. Early mobilization, usually with the assistance of physical therapy, reduces the risk of complications such as deep vein thrombosis, muscle atrophy, and pulmonary issues. Bed rest should be balanced with safe movement and positioning precautions. D. Administer a topical antibiotic to the client's incision: Postoperative incision care typically involves monitoring for signs of infection and keeping the site clean and dry. Routine application of topical antibiotics is not standard practice and may not prevent infection; systemic antibiotics are usually prescribed prophylactically if indicated.