What is the appropriate treatment regime for stable angina?

Stable angina is primarily managed by reducing myocardial oxygen demand and improving blood flow to the heart. Sublingual nitroglycerin is a nitrate that acts as a vasodilator, primarily by relaxing the smooth muscle in blood vessels, which reduces preload and afterload on the heart. During episodes of angina, this can quickly relieve chest pain by improving coronary artery blood flow and decreasing the heart's workload.

The use of sublingual nitroglycerin is particularly appropriate for stable angina because it provides rapid relief of symptoms and can be used as needed during episodes of chest pain. Patients are often advised to carry it with them to manage sudden episodes of angina, making it an important part of the treatment regimen for controlling acute angina symptoms.

In contrast, vancomycin is an antibiotic used to treat bacterial infections, dextrose infusion is typically utilized for managing hypoglycemia or providing nutritional support, and hydroxyurea is a medication primarily used to treat sickle cell disease and certain types of cancer, none of which are appropriate for the management of stable angina. Thus, the choice of sublingual nitroglycerin aligns with the goals of angina management in this clinical scenario.