Cardiac Test

Electrocardiogram (ECG/EKG)

An electrocardiogram is a quick, painless test that records your heart's electrical activity. It shows how fast your heart is beating, whether the rhythm is steady or irregular, and the strength and timing of electrical signals passing through your heart.

Also known as: EKG, ECG, 12-lead ECG, Heart tracing

Normal Range

Parameter	Reference Range
Heart Rate	60–100 bpm
Rhythm	Regular (sinus rhythm)
PR Interval	120–200 ms
QRS Duration	<120 ms

Who Should Take This Test?

Used to diagnose arrhythmias, heart attacks, heart failure, coronary artery disease, and other heart conditions. Also done before surgery or to monitor heart treatment effectiveness.

How It Works

Small electrodes (sensors) are placed on your chest, arms, and legs. They are connected by wires to an ECG machine. The machine records your heart's electrical signals as wavy lines that your doctor can read.

Preparation

No special preparation needed. You may be asked to remove clothing from your upper body and avoid lotions on your skin. The body hair may need to be shaved where electrodes are placed.

How Often?

Annually for those with heart disease risk factors. More often if monitoring a heart condition.

Symptoms to Watch

Chest pain or discomfort

Rapid or irregular heartbeat

Shortness of breath

Dizziness or lightheadedness

Fainting episodes

Fatigue with activity

Risk Factors

High blood pressure

Diabetes

Family history of heart disease

Smoking

High cholesterol

Obesity

Related Conditions

ArrhythmiaHeart AttackCoronary Artery DiseaseHeart FailureCardiomyopathy

Cost Comparison in India

Prices range from ₹80 to ₹150

Thyrocare

₹100Book

Dr Lal PathLabs

₹80Book

Metropolis Healthcare

₹150Book

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Medical Disclaimer: The information provided here is for educational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider.