A patient with stable COPD receives prescriptions for an inhaled glucocorticoid and an inhaled beta2-adrenergic agonist. Which statement by the patient indicates understanding of this medication regimen?

Choice A reason: This is not the best response by the nurse. Stopping the medication abruptly can cause rebound hypertension and other complications. The patient should not stop taking the medication without consulting their health care provider.

Choice B reason: This is not the best response by the nurse. Cutting the pill in half and taking a reduced dosage can affect the efficacy and safety of the medication. The patient should not change the dosage of the medication without consulting their health care provider.

Choice C reason: This is the best response by the nurse. Dizziness is a common side effect of ACE inhibitors, especially when the patient changes position or stands up quickly. This is due to the orthostatic hypotension (a drop in blood pressure when standing up) caused by the vasodilation effect of the medication. However, this side effect is usually mild and transient, and can be prevented by rising slowly from a sitting or lying position, drinking plenty of fluids, and avoiding alcohol.

Choice D reason: This is not the best response by the nurse. Scheduling the patient to visit the health care provider today is not necessary, unless the dizziness is severe, persistent, or accompanied by other symptoms, such as chest pain, fainting, or palpitations. The patient should be advised to monitor their blood pressure and report any significant changes or concerns to their health care provider.

Choice A reason: Cardiac output has not fallen below normal levels. Cardiac output is the amount of blood pumped by the heart per minute. It is affected by the heart rate and the stroke volume. Angina pectoris does not directly affect the cardiac output, but it can reduce the stroke volume due to impaired ventricular filling.

Choice B reason: The vagus nerve is not stimulated. The vagus nerve is a cranial nerve that innervates the heart and other organs. It is part of the parasympathetic nervous system, which slows down the heart rate and lowers the blood pressure. Angina pectoris does not activate the vagus nerve, but it can trigger the sympathetic nervous system, which increases the heart rate and blood pressure.

Choice C reason: Myocardial stretch has not exceeded the upper limits. Myocardial stretch is the degree of tension or load on the cardiac muscle fibers. It is determined by the end-diastolic volume, which is the amount of blood in the ventricle at the end of relaxation. Angina pectoris does not cause excessive myocardial stretch, but it can impair the myocardial contractility due to ischemia.

Choice D reason: The myocardial oxygen supply has fallen below demand. This is the main cause of angina pectoris. It occurs when the coronary arteries, which supply blood and oxygen to the heart muscle, are narrowed or blocked by atherosclerosis or spasm. This creates an imbalance between the oxygen demand of the heart, which increases during exertion, and the oxygen supply, which is reduced by the obstruction.