A nurse is recommending clients for discharge to allow for admission of clients following a tornado disaster. Which of the following clients should the nurse recommend for discharge?

A. "A client who has a sodium level of 140 mEq/L after one episode of diarrhea." This is the correct choice. A sodium level of 140 mEq/L is within the normal range, and the client has had only one episode of diarrhea, suggesting that they are stable and could be safely discharged. B. "A client who is 3 days postoperative following a hip arthroplasty and has a warm, red area on his left calf." This is a concern. The warm, red area on the calf could indicate the presence of a deep vein thrombosis (DVT) or infection, both of which require further evaluation and management. C. "A client who has atrial fibrillation and an INR of 4." This is concerning. An INR of 4 indicates an increased risk of bleeding, which requires closer monitoring and potentially adjusting the anticoagulation therapy before discharge. D. "A client who reports chest pain after ambulating." This is an urgent issue that needs immediate attention. Chest pain could indicate a serious cardiac event, such as a myocardial infarction, and the client should not be discharged until further evaluation is performed.