A nurse is caring for a client who is postoperative following total hip arthroplasty. Which of the following actions should the nurse take to prevent dislocation of the prosthesis?

A. Position the client's knees slightly higher than the hips when up in a chair: Elevating the knees above the hip can increase the risk of hip flexion beyond 90°, which may place stress on the prosthesis and increase the risk of dislocation. This position should be avoided postoperatively. B. Raise the head of the client's bed to a high-Fowler's position: High-Fowler’s positioning can lead to excessive hip flexion, which increases the risk of prosthetic dislocation. Proper positioning usually limits hip flexion to less than 90°. C. Elevate the client's affected leg on a pillow when in bed: Placing a pillow under the affected leg can cause internal rotation or hip flexion, both of which increase dislocation risk. Only neutral positioning of the leg is recommended. D. Keep an abduction pillow between the client's legs: An abduction pillow maintains the hips in proper alignment and prevents adduction across the midline, which is critical for reducing the risk of dislocation following total hip arthroplasty.