Correct Answer: A

Rationale: When a client receiving a blood transfusion develops a fever, the priority action for the nurse is to stop the transfusion immediately. A fever during a blood transfusion may indicate a transfusion reaction, and stopping the transfusion is crucial to prevent further complications. Administering an antihistamine (choice B) or a diuretic (choice C) without assessing and addressing the potential transfusion reaction can be harmful. Increasing the transfusion rate (choice D) is contraindicated as it can exacerbate any adverse reactions the client is experiencing.

Correct Answer: D

Rationale: The correct answer is to monitor the insertion site for redness. This intervention helps detect signs of infection early in clients with intraventricular catheters. Keeping the head of the bed elevated to 30 degrees is important for managing intracranial pressure but does not directly reduce the risk of infection. Administering IV antibiotics prophylactically is not recommended as a routine practice due to the risk of antibiotic resistance and should only be done based on culture results. Changing the catheter insertion site every 24 hours is unnecessary and increases the risk of introducing new pathogens.

Correct Answer: B

Rationale: The correct instruction for a client taking furosemide is to increase their intake of potassium-rich foods. Furosemide is a loop diuretic that can lead to potassium loss, so increasing potassium-rich foods helps prevent hypokalemia. Choice A is incorrect because furosemide is usually taken on an empty stomach. Choice C is unrelated to furosemide therapy. Choice D is incorrect as there is no need to limit calcium-rich foods while taking furosemide.

Correct Answer: C

Rationale: The correct answer is to monitor digoxin levels in a patient on digoxin. Digoxin is a medication commonly used to treat heart conditions, and monitoring its levels in the blood is crucial to ensure that the patient is within the therapeutic range and to prevent toxicity. Monitoring potassium levels (Choice A) is important due to the potential of digoxin-induced hypokalemia, but the primary focus should be on monitoring digoxin levels. Monitoring calcium levels (Choice B) and sodium levels (Choice D) are not directly related to digoxin therapy and are not the primary lab values of concern when administering digoxin.

Correct Answer: D

Rationale: Correct choice: Consume cold foods to soothe the mucosa. Cold foods can help soothe the mucosa and reduce discomfort for patients with stomatitis caused by chemotherapy.\nIncorrect choices: A) Salty foods may irritate the mucosa further. B) Spicy foods can increase discomfort and irritation. C) High-fiber foods may be rough and abrasive, exacerbating the condition.