A nurse is reinforcing teaching with a client who is prescribed levothyroxine for a thyroid disorder. Which of the following information should the nurse include in the teaching?

A. Expect to discontinue the medication after 1 month: Levothyroxine therapy is lifelong for most clients with hypothyroidism because it replaces a hormone the body can no longer produce adequately. Stopping it after a month would lead to the return of symptoms and metabolic slowing, making this statement inaccurate for proper teaching. B. Take the medication with an aluminum-containing antacid: Aluminum antacids interfere with levothyroxine absorption by binding the medication in the gastrointestinal tract. Taking them together can significantly reduce therapeutic effectiveness, so clients are advised to separate them by several hours. C. Administer the medication 1 hr before breakfast: Levothyroxine is best absorbed on an empty stomach, and giving it one hour before breakfast maximizes consistent absorption. Food can impair absorption, so this timing helps maintain stable thyroid hormone levels and supports effective symptom control. D. Notify the provider if resting pulse is less than 80/min: A resting pulse below 80 is not a cause for concern and does not indicate toxicity or dosing problems. Elevated pulse, palpitations, or symptoms of hyperthyroidism would be more relevant signs of excessive dosing and should prompt provider notification.