What distinguishes Angina from Myocardial Infarction (MI)?

Angina is typically characterized by chest pain or discomfort that occurs when the heart muscle does not get enough oxygen-rich blood. This condition is often triggered by physical exertion or emotional stress and is usually alleviated by rest or the use of medications such as nitroglycerin. In contrast, a myocardial infarction (commonly known as a heart attack) results from a prolonged lack of blood supply to the heart muscle, which can lead to permanent damage. The pain associated with a myocardial infarction is more severe and does not typically resolve with rest, indicating a critical situation that requires immediate medical attention.

The other options do not accurately reflect the clinical distinctions between angina and myocardial infarction. Angina affects both genders, can occur at various times of day, and is not solely related to congenital issues. The distinguishing features of the conditions are primarily based on their symptoms and the physiological responses, particularly the relief of angina with rest contrasted with the persistent nature of myocardial infarction symptoms.