In preparation for a patient having a Schilling test, the nurse should explain that the test:

Choice A reason: Furosemide 40 mg PO daily is not the medication that the nurse should administer for chest pain. Furosemide is a diuretic that reduces fluid volume and lowers blood pressure, but it does not relieve anginal pain.

Choice B reason: Diltiazem 30 mg PO daily is not the medication that the nurse should administer for chest pain. Diltiazem is a calcium channel blocker that relaxes the blood vessels and lowers blood pressure, but it does not act quickly enough to relieve acute anginal pain.

Choice C reason: Metoprolol 25 mg PO bid is not the medication that the nurse should administer for chest pain. Metoprolol is a beta blocker that slows down the heart rate and lowers blood pressure, but it does not act quickly enough to relieve acute anginal pain.

Choice D reason: Nitroglycerin 0.4 mg SL PRN is the medication that the nurse should administer for chest pain. Nitroglycerin is a nitrate that dilates the coronary arteries and increases blood flow to the heart, thus relieving anginal pain. It is given sublingually (under the tongue) as needed for chest pain.

Choice A reason: Performing meditation every day will not be the most important information that the nurse should stress first. Meditation is a practice that involves focusing the mind on a particular object, thought, or activity, and can help reduce stress, anxiety, and blood pressure. However, meditation alone is not enough to prevent or treat coronary artery disease, which is a condition where the arteries that supply blood to the heart become narrowed or blocked by plaque. The nurse should advise the client to practice meditation as a complementary therapy, but not as the primary intervention.

Choice B reason: It is important to look into a smoking cessation program is the most important information that the nurse should stress first. Smoking is a major risk factor for coronary artery disease, as it damages the lining of the arteries, increases the buildup of plaque, reduces the oxygen in the blood, and raises the blood pressure and heart rate. Smoking can also worsen the symptoms and complications of coronary artery disease, such as chest pain, shortness of breath, or heart attack. The nurse should urge the client to quit smoking as soon as possible, and provide them with resources and support to help them achieve this goal.

Choice C reason: It is important to take a fish oil capsule daily is not the most important information that the nurse should stress first. Fish oil is a source of omega-3 fatty acids, which are beneficial for the heart and blood vessels, as they can lower the triglycerides, reduce inflammation, and prevent blood clots. However, fish oil alone is not enough to prevent or treat coronary artery disease, which is a condition where the arteries that supply blood to the heart become narrowed or blocked by plaque. The nurse should recommend the client to take fish oil as a supplement, but not as the main treatment.

Choice D reason: You will not be able to eat meat or have other fats in your diet is not the most important information that the nurse should stress first. A healthy diet is essential for preventing and managing coronary artery disease, as it can help lower the cholesterol, blood pressure, and weight, and improve the blood flow and oxygen to the heart. However, a healthy diet does not mean that the client has to avoid all meat or fats, as some of them can be beneficial for the heart, such as lean meat, poultry, fish, nuts, seeds, or olive oil. The nurse should educate the client to limit the intake of saturated and trans fats, which are found in red meat, butter, cheese, pastries, or fried foods, and to choose more fruits, vegetables, whole grains, and low-fat dairy products.