Why are patients experiencing MI given nitroglycerin?
A)It dilates the narrowed coronary artery and allows more blood into the myocardium.
B)It dissolves the blood clot causing the MI and reduces stresses on the heart.
C)It decreases platelet aggregation and prevents growth of blood clots in the coronary artery.
D)It improves the return of venous blood to the heart and helps prevent heart failure.

Question

Quizplus · Accepted Answer

Nitroglycerin is a vasodilator that works by relaxing the smooth muscle in the walls of the coronary arteries, leading to an increase in blood flow to the myocardium. This can help alleviate the chest pain associated with myocardial infarction (MI) and may also help reduce the size of the infarction. Nitroglycerin does not dissolve blood clots or prevent platelet aggregation, nor does it directly increase venous return.

Why Are Patients Experiencing MI Given Nitroglycerin