When providing education to the patient on the use of a benzodiazepine medication, what information will the nurse include?

Choice A rationale

Radioactive iodine (RAI) therapy involves the patient ingesting a capsule containing iodine-131, which targets and destroys overactive thyroid cells. The patient's bodily fluids, including saliva, sweat, and urine, become temporarily radioactive. To protect others, especially pregnant women and young children who are more susceptible to radiation, close contact must be avoided for several days to a week.

Choice B rationale

Continuing thyroid medication is incorrect. Antithyroid medications like propylthiouracil or methimazole, used to manage hyperthyroidism, must be stopped several days before radioactive iodine therapy. These drugs can interfere with the uptake of the radioactive iodine by the thyroid gland, reducing the effectiveness of the treatment. This is a crucial instruction for treatment success.

Choice C rationale

A high-iodine diet is incorrect. The patient is instructed to follow a low-iodine diet for one to two weeks before the procedure. A low-iodine diet depletes the body's iodine stores, making the thyroid gland "hungry" for iodine. This enhanced uptake ensures that the radioactive iodine is more effectively absorbed by the thyroid cells, increasing treatment efficacy.

Choice D rationale

Increased fluid intake is a correct instruction. Consuming a generous amount of fluids after the procedure helps to flush any unabsorbed radioactive iodine out of the body through the urinary system. This helps to reduce the radiation exposure to other organs and tissues, particularly the salivary glands and the bladder, and minimizes side effects.

Choice E rationale

A low-iodine diet is a correct instruction. As noted in the rationale for choice C, a low-iodine diet is essential for maximizing the uptake of the radioactive iodine by the thyroid gland. By decreasing the body's circulating iodine levels, the thyroid gland becomes more receptive to the radioactive iodine, thereby enhancing the therapeutic effect of the treatment.

Choice F rationale

Prolonged intimate contact should be avoided. Due to the temporary radioactivity of body fluids and sweat, close contact, including kissing and sexual intercourse, should be avoided for several days to a week. The patient must also avoid sharing utensils and using separate bathrooms to prevent transferring radioactive material to others, particularly vulnerable individuals.

Choice A rationale

A heart rate of 64 beats/min is within the normal range for an adult (60-100 beats/min) and is not a cause for concern. Patients taking beta-blockers often have a lower resting heart rate due to the medication's effect, and this value would typically be considered a therapeutic response.

Choice B rationale

Beta-blocking drugs are generally contraindicated in patients with asthma because they can cause bronchospasm by blocking beta-2 receptors in the lungs. This can worsen asthmatic symptoms and lead to respiratory distress, so these medications are not safe for this patient population.

Choice C rationale

A weight gain of 2 lb in 24 hours or 5 lb in 1 week may indicate fluid retention, a sign of worsening heart failure. Patients with angina may also have underlying heart failure, and beta-blockers can sometimes worsen this condition. It is important to monitor for signs of fluid overload.

Choice D rationale

Grapefruit juice is known to interact with certain medications by inhibiting the cytochrome P450 enzymes, leading to increased drug levels. However, it does not have a significant interaction with most beta-blocking drugs and therefore does not need to be avoided.