Final answer:
The most appropriate response by the nurse would be: "Chest pain is caused by decreased oxygen to the heart muscle."
Step-by-step explanation:
The most appropriate response by the nurse would be:
Chest pain is caused by decreased oxygen to the heart muscle.
Coronary artery disease (CAD) is a condition that results from the buildup of plaque in the coronary arteries, leading to reduced blood flow to the heart muscle. This reduced blood flow causes a decrease in oxygen supply to the heart muscle, resulting in chest pain known as angina.