Which of the following symptoms might indicate a heart attack?

Persistent chest pain or discomfort is a classic symptom that often indicates a heart attack. This symptom may present as a sensation of pressure, squeezing, fullness, or pain in the center or left side of the chest. It can also radiate to other areas such as the arms, back, neck, jaw, or stomach. Recognizing this symptom is crucial, as it may precede other signs of a heart attack and is often described by patients as an overwhelming feeling that is different from typical chest discomfort. Immediate medical attention is vital when this symptom occurs, as it can be a sign of ischemia or damage to the heart muscle, necessitating prompt intervention to prevent further complications.

The other options do not typically align with the standard presentation of a heart attack. Headache and nausea may be associated with various conditions, frequent urination is not a recognized symptom of acute cardiac events, and increased appetite and thirst are generally unrelated to heart attack symptoms. Understanding the significance of chest pain in this context helps in timely recognition and treatment of cardiac events.