What is a typical sign of a heart attack?

Nausea is a typical sign of a heart attack because it can occur as part of the body's response to the stress of a cardiac event. During a heart attack, the heart muscle is not receiving enough oxygen due to blocked blood flow, which can trigger a range of body responses, including gastrointestinal symptoms like nausea. This is particularly common in women, who may experience nausea more frequently compared to men during a heart attack. Recognizing nausea in conjunction with other symptoms, such as chest pain or discomfort, is crucial for prompt medical intervention during a cardiac emergency.

The other options—such as sudden weight gain, severe headache, and flushed skin—do not align with the more commonly recognized signs of a heart attack. Sudden weight gain might suggest fluid retention but is not typically associated with acute heart attacks. Severe headaches can indicate various conditions but are not a classic symptom of heart attacks. Similarly, flushed skin may occur for other reasons but is not a common or indicative symptom related to heart attacks. Understanding these distinctions can help in recognizing a heart attack early, which is essential for effective intervention and treatment.