A patient reports a severe headache and dizziness after taking nitroglycerin. What should the nurse do?

Choice A rationale Abruptly stopping nitroglycerin is not the correct first action. The headache and dizziness are common side effects due to its vasodilatory action. Stopping the medication without assessment can leave the patient vulnerable to ongoing chest pain, and the provider needs to be aware of the patient’s hemodynamic response to the drug. Choice B rationale Giving an extra dose of nitroglycerin would exacerbate the patient's symptoms and could lead to a life-threatening drop in blood pressure. The severe headache and dizziness are signs of systemic vasodilation, and a further dose would intensify this effect, increasing the risk of severe hypotension and syncope. Choice C rationale Alcohol consumption is contraindicated with nitroglycerin as it can intensify the vasodilatory and hypotensive effects, worsening the dizziness and increasing the risk of a severe drop in blood pressure. The combination could lead to syncope, falls, and dangerously low blood pressure. Choice D rationale Nitroglycerin's primary mechanism is vasodilation, which can cause a drop in blood pressure. The patient's headache and dizziness are classic symptoms of hypotension. Assessing blood pressure provides crucial data for the healthcare provider to determine if the patient is experiencing a significant hypotensive event and whether the medication dose needs adjustment or discontinuation. A normal BP is (90/60 mmHg to 120/80 mmHg).