Final answer:
The nurse should ambulate the client and administer pain medication. A heating pad and leg crossing should be avoided.
Step-by-step explanation:
The nurse should take the following actions for a client who is 12 hr postoperative following a total hip arthroplasty:
- Ambulate the client for short distances. This helps promote circulation, prevent blood clots, and aid in healing.
- Administer intravenous pain medication as needed. This helps manage the client's pain and discomfort.
Applying a heating pad to the surgical site would not be appropriate as it may increase the risk of infection. Assisting the client in crossing their legs while in bed is contraindicated as it can put strain on the hip joint and disrupt the healing process.