Understanding ECG (Electrocardiogram)

An ECG is a quick, non-invasive test that records the heart’s electrical activity to detect irregularities, monitor heart rhythm, and evaluate overall cardiac health.

How does it work?

Small, sticky electrodes are placed on specific areas of the chest, arms, and legs. These electrodes detect the electrical impulses generated by each heartbeat and transmit them to a monitor, where they are displayed as waveforms on a graph.

Common Uses:

• Detect arrhythmias (irregular heartbeat such as atrial fibrillation)
• Diagnose heart attacks by identifying abnormal patterns
• Monitor effects of medications on the heart
• Evaluate pacemaker performance
• Screen for heart-related issues before surgery

Side Effects:

The procedure is safe, painless, and quick. You may feel a cool or sticky sensation from the electrode gel or patches. Mild skin irritation can occur when the electrodes are removed.

Frequently Asked Questions

Q1. How long does an ECG take?

Ans - An ECG typically takes 5 to 10 minutes, including the time to place the electrodes and complete the recording.

Q2. Do I need to fast or prepare in any way before an ECG?

Ans - No special preparation or fasting is required. Just wear comfortable clothing, and avoid applying lotions or oils on your chest before the test.

Q3. Can ECG detect all heart problems?

Ans - ECG is excellent for detecting electrical abnormalities, but it may not reveal all structural or blood flow issues. Additional tests like 2D Echo or stress tests may be needed.

Q4. Is ECG painful?

Ans -Not at all. It is completely painless. You may only feel a slight coolness or stickiness from the electrodes.

Q5. What do abnormal ECG results mean?

Ans -Abnormal results may indicate arrhythmias, past or current heart attacks, or other electrical issues. Your doctor will explain the findings in detail and suggest next steps if needed.