If a patient has a history of angina, what should be done?

In the context of a patient with a history of angina, administering nitroglycerin is the most appropriate action. Nitroglycerin is a medication that helps to relieve chest pain associated with angina by dilating blood vessels, which improves blood flow to the heart muscle. This can help alleviate the symptoms of angina during an episode by reducing the heart's workload and increasing the supply of oxygen-rich blood.

Prompt use of nitroglycerin when symptoms arise can be critical in managing angina episodes effectively. Patients who have a known history of angina are often prescribed nitroglycerin to use as needed when they experience chest pain, making it a first-line treatment option in these situations.

While monitoring vital signs, providing CPR, or administering aspirin could be relevant in different contexts of cardiac emergencies, they are not the immediate interventions for managing angina pain specifically. Monitoring vital signs is a supportive measure but does not directly address the acute discomfort of angina. Providing CPR is necessary only in cases of cardiac arrest, and aspirin, although beneficial in certain cardiac situations, is not the immediate intervention for angina attacks unless someone is suspected of having a myocardial infarction (heart attack). Therefore, the key to managing a patient with angina lies