When chest pain is an emergency, and when to call for help

Key points#

• Most chest pain is not a heart attack, but you usually cannot tell the dangerous kind apart at home, so the warning features matter more than a self-diagnosis.
• Call emergency services now for chest pressure, tightness, or squeezing that lasts more than a few minutes or comes and goes, spreads to an arm, jaw, neck, or back, or comes with shortness of breath, a cold sweat, nausea, or lightheadedness.
• Do not drive yourself: responders can start care on the way, and a heart attack can worsen suddenly.
• Faster treatment means less heart damage, so waiting to see if it passes is the costly mistake.

Chest pain sends a lot of people to the emergency department, and most of the time it is not a heart attack. It can come from muscles and ribs, from the stomach and reflux, from anxiety, from the lungs, from any number of things that are uncomfortable but not dangerous. That is genuinely reassuring. It is also exactly why chest pain is hard: the harmless causes are common, the dangerous ones can feel similar, and a heart attack does not always announce itself loudly. So the useful question is not "what is this pain," which you often cannot answer at home, but "does this pain have features that mean I should call for help now." This piece is about how to think that through, and when to stop thinking and call.

Why you cannot reliably diagnose chest pain at home#

It is tempting to want a checklist that sorts chest pain into "fine" and "emergency" from the comfort of your own kitchen. The honest answer is that no such checklist exists, and pretending otherwise is where people get hurt.

Part of the problem is that a heart attack can be subtle. The American Heart Association describes chest discomfort that may be an uncomfortable pressure, squeezing, fullness, or pain, lasting more than a few minutes or fading and returning, rather than a single dramatic event. It can come with discomfort in the arms, back, neck, jaw, or stomach, with shortness of breath, a cold sweat, nausea, or lightheadedness, and these may appear with or without much chest pain at all. Some of those signals are easy to file under indigestion or a pulled muscle.

The other part is that the tests which actually distinguish a heart attack from a harmless cause, an electrocardiogram and blood tests for cardiac markers, are done in a hospital, not at home. So the realistic goal is not to diagnose yourself. It is to recognize the features that should lower your threshold to call, and then let clinicians do the part that needs a hospital.

The features that mean call for help now#

Here is the practical core. If chest pain has any of the following features, treat it as a possible heart attack and call emergency services. This list draws on the warning signs from the American Heart Association and the American College of Emergency Physicians.

• Chest discomfort in the center or left side that feels like pressure, tightness, squeezing, or fullness, especially if it lasts more than a few minutes, or goes away and comes back.
• Pain that spreads to one or both arms, or to the jaw, neck, back, or stomach.
• Shortness of breath, with or without the chest discomfort.
• A cold sweat, nausea or vomiting, lightheadedness, or fainting along with the discomfort.
• Pain that comes on with exertion and eases with rest, which can be a sign of the heart not getting enough blood.
• New, severe, or clearly unusual chest pain, particularly in someone with risk factors for heart disease such as older age, high blood pressure, diabetes, smoking, high cholesterol, or a family history.

Two extra notes matter. First, symptoms can differ between people: the American Heart Association notes that women may be more likely to have shortness of breath, nausea or vomiting, and back or jaw pain, sometimes without prominent chest pain. Second, this list is meant to lower your threshold, not raise it. If something feels like it could belong here, that uncertainty is itself a reason to call, not a reason to wait.

Angina, and pain that comes and goes#

Not all heart-related chest pain is a heart attack in progress. The American Heart Association describes angina as chest pain or discomfort that happens when the heart muscle is not getting enough oxygen-rich blood, often felt as pressure or squeezing that can spread to the shoulders, arms, neck, jaw, or back. Angina is a symptom of an underlying heart problem rather than a disease on its own, and it is a reason to be evaluated by a clinician.

The important distinction is between known, stable angina and anything new or changing. If you have already been diagnosed with angina and have a plan from your clinician for what to do when it occurs, follow that plan. But chest discomfort that is new, that comes on at rest, that is more severe than usual, that lasts longer, or that does not settle the way it normally does is not something to wait out. Pain that comes and goes is not a reason for relief on its own, because the discomfort of a heart attack can do exactly that. When in doubt, the safe move is to call.

Why not to wait, and why not to drive yourself#

Two instincts get people into trouble with chest pain: the urge to wait and see, and the urge to drive themselves to the hospital. Both are understandable, and both can be dangerous.

Waiting is the costlier of the two. During a heart attack, blood flow to part of the heart muscle is blocked, and that muscle is being damaged for as long as the blockage continues. The American College of Emergency Physicians notes that the longer a heart attack goes without treatment, the more heart muscle can be permanently damaged, and that lifesaving medications work best early. Faster treatment means less damage, which is the whole reason time is so central to the outcome. The hour spent talking yourself out of calling is the hour that does the harm.

Driving yourself is the other trap. The American College of Emergency Physicians advises calling an ambulance rather than driving, because emergency medical professionals can begin care on the way to the hospital, and because if the person's condition worsens during the drive there is nothing a driver can safely do about it. A heart attack can deteriorate suddenly, including into a dangerous heart rhythm, and that is not a situation you want to meet from behind the wheel. Calling for help is not only safer, it is usually the faster route to treatment, because care starts the moment responders arrive.

If chest pain strikes#

Hold two true things at once. Most chest pain is not a heart attack, so this is not a reason to live in fear of every twinge. And you usually cannot tell the dangerous kind apart at home, so when chest pain carries the warning features, the right response is to call emergency services and let clinicians do the sorting. Learn the features now, while you are calm: pressure or squeezing in the chest, pain spreading to an arm, jaw, neck, or back, shortness of breath, a cold sweat, nausea, or lightheadedness, and anything new, severe, or unusual in someone with heart risk factors. If you ever meet them, do not wait to see if it passes, and do not drive yourself. Call for help. The people who do best with a heart attack are almost always the ones who called early, and being willing to call, even when it might be nothing, is the most useful decision you can make. For your own health, and for ongoing chest pain that is not an emergency, talk with your clinician.