A heart attack is a serious medical emergency where the blood supply to the heart muscle is blocked, often by a blood clot. Immediate action is critical to increase the chances of survival and reduce long-term damage. Knowing how to identify the signs of a heart attack and what to do next can save lives. Here’s a comprehensive guide to help you spot the warning signs and take the right steps.

Signs of a Heart Attack

Heart attacks don’t always present as dramatic, chest-clutching events. The symptoms can be subtle and vary between individuals, particularly in women. Here are some common signs:

1. Chest Pain or Discomfort
   • A feeling of pressure, tightness, or squeezing in the chest.
   • This pain may last several minutes or come and go.
2. Pain in Other Parts of the Body
   • Pain can radiate to the arms (often the left arm), neck, jaw, back, or stomach.
3. Shortness of Breath
   • Difficulty breathing, even at rest, is a key symptom.
4. Nausea, Vomiting, or Light-headedness
   • Many individuals report feeling sick, dizzy, or faint.
5. Sweating
   • Breaking out in a cold sweat without any obvious cause.
6. Fatigue
   • Extreme tiredness, particularly in women, even without physical exertion.

Cardiac Arrest Symptoms

It’s important to distinguish between a heart attack and cardiac arrest. While a heart attack refers to a blockage in blood flow, cardiac arrest is when the heart stops beating altogether. Symptoms of cardiac arrest include:

• Sudden loss of consciousness.
• No pulse or breathing.
• Collapsing without warning.

What to Do If You Spot These Signs

When you suspect someone is having a heart attack or suffering from cardiac arrest, quick action is essential:

1. Call 999 Immediately

• Even if you’re unsure whether the person is having a heart attack, call emergency services without delay. Early medical intervention is critical.

2. Reassure and Keep the Person Calm

• Have them sit down and rest, preferably in a half-sitting position with their back supported.
• Encourage them to remain as calm and still as possible to avoid straining the heart further.

3. Administer Aspirin (If Advised)

• If the person isn’t allergic and has no contraindications, they may be able to chew a 300mg aspirin. Aspirin helps to thin the blood and improve flow.

4. Be Prepared to Perform CPR (for Cardiac Arrest)

• If the person becomes unconscious and stops breathing, begin CPR immediately:
  • Place the heel of one hand on the centre of their chest, interlock your fingers, and perform chest compressions at a depth of 5–6 cm.
  • Aim for a rate of 100–120 compressions per minute.
• If you’re not trained in CPR, focus solely on chest compressions.

5. Use a Defibrillator if Available

• Automated External Defibrillators (AEDs) are available in many public places. These devices provide clear instructions and can restore the heart’s rhythm during cardiac arrest.

What Not to Do

1. Don’t Leave Them Alone

Stay with the person until emergency services arrive. Isolation can increase their anxiety and worsen their condition.

2. Don’t Give Them Food or Drink

Avoid giving anything to eat or drink, as they may require surgery or other immediate medical interventions.

3. Don’t Ignore Symptoms

Never downplay symptoms, even if they seem mild. Early medical intervention dramatically improves outcomes.

4. Don’t Attempt to Diagnose Yourself

If you are experiencing symptoms, call 999 instead of driving yourself to the hospital.

Prevention and Awareness

While recognising the signs of a heart attack is crucial, prevention is always better than cure. Maintaining a healthy lifestyle—eating a balanced diet, exercising regularly, avoiding smoking, and managing stress—can significantly reduce your risk. Regular health check-ups can also help identify underlying conditions like high blood pressure or cholesterol.

Heart attacks can strike anyone, anywhere. Educating yourself and others about the symptoms and appropriate actions can make a life-or-death difference. If in doubt, always err on the side of caution and call for help.

Reading online guides such as these can be helpful, but they are no substitute for taking a professional first aid course or a basic life support course. These courses give you the confidence and skills to deal with a range of emergency situations, including cardiac arrest.

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FAQ

How do I know if chest pain is a heart attack?
Heart attack chest pain typically feels like pressure or tightness and may radiate to other areas, such as the arms or jaw. It is often accompanied by other symptoms like sweating or shortness of breath.

What is the difference between a heart attack and cardiac arrest?
A heart attack involves a blockage in blood flow to the heart, while cardiac arrest occurs when the heart stops beating altogether.

Can women have different symptoms of a heart attack?
Yes, women may experience symptoms like fatigue, nausea, or back pain rather than the classic chest pain.

Should I perform CPR if I’m not trained?
Yes, if the person is unresponsive and not breathing. Focus on chest compressions until help arrives.Can anxiety mimic heart attack symptoms?
Anxiety can cause similar symptoms, such as chest tightness and shortness of breath. However, if in doubt, always call 999 to rule out a heart attack.