An ECG (Electrocardiogram) is a diagnostic test that records the electrical activity of the heart over a short period.

• It uses small sensors (electrodes) placed on the skin.
• The test creates a graph (electrocardiogram) showing heart rhythms and patterns.
• It’s quick, safe, and widely available.

👉 Simply put, ECGs are like your heart’s “electrical fingerprint,” helping doctors spot abnormalities.

Doctors recommend an ECG when patients have:

• Chest pain or tightness
• Shortness of breath
• Dizziness or fainting
• Irregular heartbeats (palpitations)
• High blood pressure or existing heart conditions

An ECG can help detect:

• Arrhythmias (abnormal heart rhythms)
• Heart attack (current or past)
• Heart enlargement due to high blood pressure
• Electrolyte imbalances affecting heart rhythm

📊 According to the World Health Organization, cardiovascular diseases are the leading cause of death globally—making timely ECG screening even more important.

1. Resting ECG

• Done while lying still.
• Commonly used for routine checks.

2. Stress ECG (Exercise ECG)

• Performed while walking on a treadmill or cycling.
• Helps assess how the heart works under physical stress.

3. Holter Monitoring

• A portable ECG device worn for 24–48 hours.
• Records continuous heart activity during daily life.

4. Event Recorder

• Used over several weeks.
• Records only when activated during symptoms.

Step-by-step process:

1. You’ll be asked to lie on a bed or examination table.
2. Electrodes are placed on your chest, arms, and legs.
3. The ECG machine records your heart’s electrical activity.
4. A graph is printed or stored digitally for the doctor’s review.

⏱️ Duration: Usually 5–10 minutes.

💡 Tip: Avoid using lotions or oils before the test, as they can interfere with electrode placement.