Which condition presents as chest pain when the heart does not receive enough oxygen?

Which condition presents as chest pain when the heart does not receive enough oxygen?

• A. CAD
• B. Endocarditis
• C. Angina
• D. Myocardial Infarction

Answer: (C)

Chest pain from not enough oxygen reaching the heart muscle is angina. It happens when myocardial oxygen supply falls short of demand, typically because the coronary arteries are narrowed by atherosclerosis. This usually occurs with activity or stress and is often relieved by rest or nitroglycerin, reflecting transient ischemia rather than tissue death. Endocarditis is an infection of the heart valves or lining and tends to present with fever, a heart murmur, and signs of infection rather than chest pain from ischemia. Myocardial infarction involves prolonged, severe ischemia leading to heart muscle damage and typically presents with ongoing chest pressure, weakness, sweating, and elevated cardiac enzymes. Coronary artery disease describes the underlying disease process that can cause angina, but the symptom described—chest pain due to inadequate oxygen delivery—maps most directly to angina.

Chest pain from not enough oxygen reaching the heart muscle is angina. It happens when myocardial oxygen supply falls short of demand, typically because the coronary arteries are narrowed by atherosclerosis. This usually occurs with activity or stress and is often relieved by rest or nitroglycerin, reflecting transient ischemia rather than tissue death.

Endocarditis is an infection of the heart valves or lining and tends to present with fever, a heart murmur, and signs of infection rather than chest pain from ischemia. Myocardial infarction involves prolonged, severe ischemia leading to heart muscle damage and typically presents with ongoing chest pressure, weakness, sweating, and elevated cardiac enzymes. Coronary artery disease describes the underlying disease process that can cause angina, but the symptom described—chest pain due to inadequate oxygen delivery—maps most directly to angina.