Correct Answer: B

Rationale: The presence of expired food in the refrigerator is concerning as it raises safety issues for the client and indicates potential financial constraints preventing them from buying fresh food. The nurse should consider referring the client to services like Meals on Wheels or other home-based food programs to address this issue and ensure the client's nutritional needs are met.

Correct Answer: D

Rationale: The most effective intervention to prevent the spread of infection when caring for a client with pneumonia is performing hand hygiene before and after client contact. This practice helps reduce the transmission of pathogens from one person to another, promoting infection control and maintaining a safe environment for both the client and healthcare provider.

Correct Answer: D

Rationale: Assessing the client for allergies, particularly to iodine or shellfish, is crucial before a cardiac catheterization because the contrast dye used during the procedure can lead to allergic reactions. Identifying any allergies beforehand allows the healthcare team to take necessary precautions to prevent potential adverse reactions and ensure the client's safety.

Correct Answer: B

Rationale: The correct answer is B. A nurse should ask the client if they have any chronic breathing problems when the anteroposterior (AP) chest diameter is the same as the lateral chest diameter. This finding indicates a barrel chest, which can be associated with chronic respiratory conditions such as chronic obstructive pulmonary disease (COPD) or emphysema. Assessing for chronic breathing problems can help the nurse further evaluate the client's respiratory status and provide appropriate care.

Correct Answer: D

Rationale: Regular monitoring of liver function tests is crucial for clients taking isoniazid (INH) due to the potential risk of hepatotoxicity. Isoniazid can cause liver damage, and early detection through routine liver function tests can help prevent severe complications.