Correct Answer: D

Rationale: The correct statement the nurse should include is to take levothyroxine with a full glass of water before breakfast. This helps improve absorption and prevents gastrointestinal side effects. Choice A is incorrect because levothyroxine should be taken on an empty stomach. Choice B is incorrect as insomnia is not a common side effect of levothyroxine. Choice C is also incorrect as levothyroxine does not need to be refrigerated.

Correct Answer: C

Rationale: The correct action the nurse should take when caring for a client with a chest tube is to keep the drainage system below the level of the client's chest. This positioning helps prevent fluid from flowing back into the pleural space, ensuring proper drainage and effective functioning of the chest tube. Clamping the chest tube intermittently or stripping it frequently can lead to complications and should be avoided. Emptying the drainage collection chamber at specific intervals may vary based on institutional protocols, but it should be done when it is no more than two-thirds full to prevent backflow and maintain accurate monitoring of drainage output.

Correct Answer: B

Rationale: The correct answer is B. A persistent dry cough is a common side effect of captopril, an ACE inhibitor, and should be included in the teaching. Choice A is incorrect because captopril is usually taken on an empty stomach. Choice C is incorrect because captopril can increase potassium levels, so there is no need to further increase potassium intake. Choice D is incorrect because captopril does not interact with grapefruit.

Correct Answer: B

Rationale: Irritability is a common early manifestation of hypoglycemia. When blood glucose levels drop, the brain perceives this as a stressor, leading to irritability. Abdominal cramps (choice A) are not typically associated with hypoglycemia but can occur with other gastrointestinal issues. Increased thirst (choice C) is more indicative of hyperglycemia rather than hypoglycemia. Blurred vision (choice D) is a symptom more commonly associated with hyperglycemia rather than hypoglycemia.

Correct Answer: D

Rationale: The correct action the nurse should take is to flush the tube with 0.9% sodium chloride every 4 hours. This helps maintain patency and prevents clogs during enteral feedings. Keeping the head of the bed elevated to 15 degrees (Choice A) is important for preventing aspiration but is not directly related to tube care. Changing the feeding bag every 48 hours (Choice B) is not a standard practice as the bag should be changed every 24 hours to prevent bacterial growth. Administering the feeding through a large-bore syringe (Choice C) is incorrect as enteral feedings should be given through an appropriate feeding pump for accuracy and safety.