What is a common symptom of myocardial infarction?

The common symptom of myocardial infarction, or heart attack, is pressure in the chest. This sensation is often described as a feeling of tightness, heaviness, or squeezing in the chest area. It can also radiate to the shoulders, neck, arms, back, teeth, or jaw. This symptom is critical because it typically occurs suddenly and can signal a life-threatening event requiring immediate medical attention.

The other options do not directly relate to the classic presentation of a myocardial infarction. Headaches, while they can occur due to various reasons, are not characteristic of a heart attack. Swelling in the legs may indicate fluid retention or heart failure, but it is not a primary symptom of a myocardial infarction itself. Blurred vision can result from several conditions, including stress or changes in blood pressure, but it is not associated with heart attacks. Recognizing the classic signs and symptoms of a myocardial infarction is essential for prompt treatment and improving patient outcomes.