Question

How does nitroglycerin decrease the level of chest pain that a patient experiences?

A. It dilates the blood vessels, allowing more blood to enter the heart muscle.
B. It constricts the blood vessels, forcing more blood into the heart muscle.
C. It dilates the blood vessels, allowing more blood flow to wash away the toxic lactic acid.
D. It constricts the blood vessels, forcing the toxic lactic acid out of the heart.

Answer 1

Nitroglycerin decreases the level of chest pain by dilating the blood vessels, allowing more blood flow to the heart muscle.

Step-by-step explanation:

Nitroglycerin decreases the level of chest pain that a patient experiences by dilating the blood vessels. When nitroglycerin is administered, it triggers the release of nitric oxide (NO), which is a known vasodilator. Nitric oxide causes the blood vessels to expand or dilate, allowing more blood to flow to the heart muscle. This increased blood flow helps to relieve chest pain by ensuring that the heart muscle receives adequate oxygen and nutrients.