Which of these symptoms could indicate a heart attack?

Pain radiating to the shoulder is a classic symptom that may indicate a heart attack. This pain often results from the heart's inability to receive enough oxygen due to blocked blood flow, leading to discomfort not just in the chest, but also radiating to other areas including the shoulders, arms, neck, jaw, and back. Recognizing this symptom is critical because timely medical intervention can significantly improve outcomes in cases of a heart attack. Understanding this relation can aid in promptly identifying a cardiac event, potentially saving a life. It's essential for responders to be aware that such symptoms can indicate a serious medical issue, warranting immediate action.

The other symptoms listed, while they may occur in some individuals, are not typically associated with heart attacks in the same direct way that shoulder pain is. A headache, loss of appetite, or swelling in the feet may suggest other health conditions but do not serve as primary indicators of a heart attack.