A nurse is providing teaching to a client who has hypertension and a new prescription for captopril. Which of the following instructions should the nurse provide?

Choice A reason: Blood pressure 160/94 mm Hg is not a reason to withhold atenolol, as it is a beta-blocker that lowers blood pressure and reduces the workload of the heart. Atenolol is indicated for hypertension, angina, and arrhythmias. The nurse should administer atenolol as prescribed, unless the blood pressure is too low (hypotension).

Choice B reason: Heart rate 46/min is a reason to withhold atenolol, as it is a sign of bradycardia (slow heart rate), which can be a side effect of atenolol. Atenolol can decrease the heart rate by blocking the beta-1 receptors in the heart. The nurse should withhold atenolol if the heart rate is below 60 beats per minute or above 100 beats per minute, and report the finding to the provider.

Choice C reason: Oxygen saturation 95% is not a reason to withhold atenolol, as it is a normal value that indicates adequate oxygenation of the blood. Atenolol does not affect the oxygen saturation or the respiratory function. The nurse should monitor the oxygen saturation regularly, and report any signs of hypoxia (low oxygen level).

Choice D reason: Respiratory rate 18/min is not a reason to withhold atenolol, as it is a normal value that indicates normal breathing. Atenolol does not affect the respiratory rate or the respiratory function. The nurse should monitor the respiratory rate regularly, and report any signs of dyspnea (difficulty breathing).

Choice A reason: Taking only one dose of nitroglycerin is not a good advice, as it may not be enough to relieve the angina pain and prevent a myocardial infarction. Nitroglycerin is a vasodilator that relaxes the blood vessels and improves the blood flow to the heart. The recommended dose is one tablet or spray under the tongue every 5 minutes for up to three doses, or until the pain is relieved. Taking only one dose may compromise the effectiveness of the medication and the safety of the client.

Choice B reason: Asking the provider to prescribe a different medication is not a necessary action, as nitroglycerin is a first-line treatment for stable angina and has proven benefits for reducing mortality and morbidity. Changing the medication may not be appropriate or feasible, as there may not be a suitable alternative that has the same efficacy and safety profile. The client should continue taking nitroglycerin as prescribed, unless the provider decides otherwise.

Choice C reason: Saying that there's nothing that can be done to relieve the headaches is not a true or helpful statement, as there are some measures that can help reduce or prevent the headaches. Headaches are a common and expected side effect of nitroglycerin, as it dilates the blood vessels in the brain and causes increased intracranial pressure. However, the headaches usually subside over time as the body adapts to the medication. The client can also take a mild analgesic, such as acetaminophen or ibuprofen, to relieve the headache, as long as it does not interact with the nitroglycerin or other medications.

Choice D reason: Trying to take a mild analgesic to relieve the headache is a reasonable and appropriate suggestion, as it can help alleviate the discomfort and improve the quality of life of the client. The client should choose an analgesic that is safe and effective, such as acetaminophen or ibuprofen, and follow the directions on the label. The client should also consult the provider or the pharmacist before taking any over-the-counter medications, as some of them may interact with nitroglycerin or other medications. The client should also avoid aspirin, as it may increase the risk of bleeding.