A nurse is monitoring a client who is receiving a blood transfusion. The nurse identifies that the client has urticaria and is wheezing. Which of the following types of transfusion reactions should the nurse suspect?

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.

A. The client should use a hair dryer on a warm setting to relieve itching inside the cast is incorrect. Using a hair dryer could cause skin burns or damage the cast. Additionally, the client should avoid introducing moisture into the cast, which could lead to skin irritation or infection.

B. The client's extremity should be elevated after the cast is applied is correct. Elevating the extremity helps reduce swelling and inflammation during the initial phase after cast application. It is important to elevate the limb above the level of the heart to promote venous return and reduce swelling.

C. The client can shower with the cast after 24 hr is incorrect. The plaster cast should not get wet. The nurse should instruct the client to keep the cast dry at all times. A plastic cover or cast protector should be used when showering to prevent moisture from seeping into the cast.

D. The client should keep the cast covered until it is dry is incorrect. It is true that the cast should be kept dry, but keeping it covered is not enough. The primary concern is preventing moisture and ensuring the plaster cast is allowed to air dry in a well-ventilated area without getting wet.