Which medications are included in the treatment for unstable angina?

The treatment for unstable angina typically involves medications that help relieve symptoms and improve blood flow to the heart. The selected answer, which includes morphine, oxygen, nitroglycerin, and aspirin, is correct because each of these medications plays a crucial role in managing the condition.

Morphine is used for its analgesic properties to reduce chest pain and anxiety, providing comfort to the patient while also helping to decrease myocardial oxygen demand. Oxygen is administered to ensure adequate oxygenation of the heart muscle, particularly in cases where it may be compromised. Nitroglycerin acts as a vasodilator, helping to relax blood vessels and improve blood flow to the heart, which alleviates symptoms of angina. Aspirin is important for its antiplatelet effects, helping to prevent further clot formation, which is critical in unstable angina scenarios where there is a risk of heart attack.

In contrast, the other options contain medications that are either not appropriate for acute management of unstable angina or do not target the immediate needs of the patient in this situation. For instance, anticoagulants and beta blockers are typically part of longer-term management strategies rather than immediate treatment for unstable angina. Verapamil is a calcium channel blocker often used in chronic ang