Question

What dilates the coronary arteries, thus increasing oxygen supply to the heart and relieving a cardiac patient's chest pain?

1) Nitroglycerin
2) Aspirin
3) Ibuprofen
4) Acetaminophen

Answer 1

Nitroglycerin is the medication that dilates the coronary arteries, increasing oxygen supply to the heart and relieving chest pain in cardiac patients.

Step-by-step explanation:

Nitroglycerin dilates the coronary arteries, thus increasing oxygen supply to the heart and relieving a cardiac patient's chest pain. Nitroglycerin is believed to involve the release of nitric oxide, a known vasodilator, and endothelium-derived releasing factor, which also relaxes the smooth muscle in the tunica media of coronary vessels.