12 lead electrocardiography (ecg)
CardiologyNone (procedure) sampleResults Same dayNo fasting
12 Lead Electrocardiography (ECG)
A 12-lead ECG records your heart's electrical activity through small stickers placed on your chest, arms, and legs. People get it to check heart rhythm and screen for problems like irregular beats or signs of strain.
Sample
None (procedure)
Results
Same day
Fasting
Not required
Follow-up
Optional add-on
What this test detects
Heart rhythm and rate
12-lead electrocardiography
Tracing + interpretation
Electrical conduction patterns
12-lead electrocardiography
Tracing + interpretation
When to get this test
Palpitations or irregular beats
Helps identify abnormal heart rhythms such as atrial fibrillation or extra beats.
Chest discomfort
Used to look for electrical changes that may point to reduced blood flow to the heart.
Pre-procedure or routine check
Often requested before surgery or as part of a general heart assessment.
How to prepare
01
Avoid heavy exercise and caffeine right before the test.
02
Wear easily removable upper clothing so the leads can be placed.
03
No fasting needed.
Common questions
Does an ECG hurt?
Not at all. Small sticky pads are placed on your skin and the machine only listens to your heart's signals.
How long does it take?
The recording itself takes only a few minutes, and the whole visit is usually quick.
Can I eat before an ECG?
Yes, there is no need to fast. Just avoid caffeine and strenuous activity just beforehand.