A client with hyperthyroidism is prescribed methimazole. The nurse should instruct the client that the purpose of this medication is to:

Correct Answer: A

Rationale: The correct answer is A: Decrease thyroid hormone production. Methimazole works by inhibiting the synthesis of thyroid hormones, specifically by blocking the enzyme responsible for this process. By reducing the production of thyroid hormones, methimazole helps to normalize the elevated levels seen in hyperthyroidism. Choices B, C, and D are incorrect. Choice B, 'Increase thyroid hormone production,' is inaccurate as methimazole actually decreases thyroid hormone production. Choice C, 'Suppress the immune system,' is unrelated to the mechanism of action of methimazole. Choice D, 'Prevent thyroid storm,' is not the primary purpose of methimazole; while it may help prevent worsening of hyperthyroidism, its main action is to reduce thyroid hormone levels.

Correct Answer: C

Rationale: In a client with Cushing's syndrome, a low-grade fever should be reported immediately as it may indicate an infection. Clients with Cushing's syndrome are immunosuppressed, making them more susceptible to infections. Hyperglycemia and hypertension are common findings in Cushing's syndrome and are managed as part of the condition. Weight gain is also a common symptom in Cushing's syndrome and may not require immediate reporting unless it is sudden and severe.

Correct Answer: C

Rationale: Confusion is a critical symptom of hypoglycemia that indicates the brain is not receiving enough glucose, potentially leading to serious complications like unconsciousness or seizures. Immediate reporting of confusion is essential for prompt intervention to prevent worsening of hypoglycemia. Shakiness and sweating are early warning signs of hypoglycemia but may not always require immediate intervention. Increased thirst is a symptom commonly associated with hyperglycemia rather than hypoglycemia.

Correct Answer: C

Rationale: Bradycardia is a common symptom of hypothyroidism because the condition leads to a decreased metabolic rate. Weight loss (Choice A) is more commonly associated with hyperthyroidism, where the metabolic rate is increased. Heat intolerance (Choice B) is also more indicative of hyperthyroidism due to increased sensitivity to heat. Diarrhea (Choice D) is not a typical symptom of hypothyroidism; rather, constipation is more common due to the slow-down of the digestive system.

Correct Answer: C

Rationale: The correct answer is to take levothyroxine on an empty stomach in the morning. This instruction is essential to enhance absorption and efficacy of the medication. Taking levothyroxine with meals, at bedtime, or with a glass of milk can interfere with its absorption and effectiveness, leading to suboptimal treatment outcomes.