When Chest Pain Requires Medical Attention

What It Is

This guide is general information about how chest pain is categorized by urgency. It is not a self-triage tool and cannot be used to decide whether a particular episode of chest pain is safe.

Several life-threatening conditions can cause chest pain, including heart attack, pulmonary embolism (a blood clot in the lungs), aortic dissection (a tear in the body's main artery), and a collapsed lung. These conditions often require rapid treatment, which is why public health organizations encourage people to treat certain warning signs as emergencies.

Medical organizations generally emphasize that it is better to have chest pain checked and find a minor cause than to delay care for a serious one.

Common Terminology

Heart attack

Damage to part of the heart muscle caused by a blocked blood supply; also called myocardial infarction.

Acute coronary syndrome

A group of conditions, including heart attack and unstable angina, caused by a sudden reduction in blood flow to the heart.

Unstable angina

Chest pain from reduced heart blood flow that is new, worsening, or happens at rest, and is generally treated as an emergency.

Aortic dissection

A tear in the inner layer of the aorta, the large artery leaving the heart; it is rare but life-threatening.

Pulmonary embolism

A blood clot that blocks an artery in the lungs, often causing sudden chest pain and shortness of breath.

Triage

The process emergency staff use to sort patients by how urgently they need care.

Serious Conditions Commonly Associated With Chest Pain

These are conditions that medical organizations commonly highlight because they need prompt treatment. This list is for general education only.

• Heart attack, caused by a blockage in an artery that supplies the heart muscle.
• Unstable angina, where reduced blood flow to the heart causes new or worsening chest pain.
• Pulmonary embolism, a blood clot in the lungs, which is more common after surgery, long periods of immobility, or with certain clotting risks.
• Aortic dissection, a tear in the aorta that may cause sudden, severe, tearing pain in the chest or back.
• Collapsed lung (pneumothorax), which can cause sudden sharp chest pain and trouble breathing.
• Pericarditis or myocarditis, inflammation around or within the heart, which sometimes needs urgent evaluation.

Warning Signs Commonly Described by Health Organizations

This is a general description of warning signs that public health sources emphasize, not a diagnostic checklist.

• Chest pain, pressure, squeezing, or fullness that lasts more than a few minutes, or goes away and comes back.
• Pain or discomfort that spreads to one or both arms, the back, neck, jaw, or stomach.
• Shortness of breath, with or without chest discomfort.
• Breaking out in a cold sweat, nausea, vomiting, or lightheadedness along with chest discomfort.
• Fainting, a very fast or irregular heartbeat, or confusion together with chest pain.
• Sudden, severe, tearing chest or back pain, which is commonly described as a sign of aortic dissection.

What Emergency Evaluation Generally Involves

In emergency settings, chest pain is usually evaluated quickly using standard steps.

• An electrocardiogram (ECG) is commonly done within minutes of arrival to look for signs of a heart attack.
• Blood tests such as troponin are used to check for heart muscle damage, sometimes repeated over several hours.
• Vital signs, including blood pressure, heart rate, oxygen level, and breathing rate, are monitored.
• Imaging such as a chest X-ray or CT scan may be used to look for lung or blood vessel problems.
• Depending on findings, people may be observed, admitted, or referred for further heart testing.

How Emergency Care Is Generally Organized

Emergency treatment depends on the cause found during evaluation.

• Emergency medical services (EMS) can begin monitoring and treatment before a person reaches the hospital.
• For heart attacks, hospitals aim to restore blood flow quickly, often with a procedure to open the blocked artery or with clot-dissolving medicine.
• Pulmonary embolism is commonly treated with blood-thinning medicines and, in some cases, procedures to remove the clot.
• Aortic dissection often requires urgent surgery or careful control of blood pressure in a hospital.
• When serious causes are ruled out, people are often advised to follow up with a primary care clinician.

When Professional Care May Be Discussed

Health organizations generally describe these situations in terms of urgency.

• Chest pain that is sudden, severe, or comes with shortness of breath, sweating, nausea, or fainting is generally treated as a medical emergency; in the US, people are advised to call 911.
• Health organizations generally advise not waiting to see whether chest pain goes away when heart attack warning signs are present.
• Chest pain that is new, unexplained, or different from previous episodes is commonly evaluated promptly.
• Mild chest pain that clearly follows an injury or strain, or recurring heartburn, is generally discussed with a healthcare professional during a regular visit.
• People with known heart disease are often given individual plans by their clinicians for what to do if chest pain occurs.

Questions to Ask a Healthcare Professional

General questions people often find useful to bring to an appointment:

• What are the common warning signs of a heart attack in men and in women?
• Why do health organizations recommend calling 911 instead of driving to the hospital?
• What happens during an emergency evaluation for chest pain?
• What is the difference between stable and unstable angina?
• Which non-heart conditions can cause chest pain that needs urgent care?
• How can heart disease risk factors be reduced over time?

Sources

This guide was written in plain language from the following authoritative references.

1. Heart Attack — MedlinePlus (U.S. National Library of Medicine)
2. Chest Pain — MedlinePlus (U.S. National Library of Medicine)
3. Heart Attack — National Heart, Lung, and Blood Institute (NHLBI)
4. Chest pain — NHS (UK National Health Service)

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