Electrocardiogram
This topic will help you learn about electrocardiograms and how to prepare for them.
What Is anECGElectrocardiogram Test?
An electrocardiogram (ECG) is a simple test that can be used to check your heart’s rhythm and electrical activity.
Sensors attached to the skin detect the electrical signals your heart produces each time it beats. These signals are recorded by a machine and examined by a doctor to see if they are unusual.
When Is an Electrocardiogram Test Performed?
- An electrocardiogram is often used alongside other tests to help diagnose and monitor conditions that affect the heart. It can be used to investigate symptoms of a possible heart problem, such as:
- Chest pain, palpitations (sudden noticeable heartbeats), dizziness, and shortness of breath.
- Arrhythmia, where the heart beats too slowly, too quickly, or irregularly.
- Coronary heart disease, where the heart’s blood supply is blocked or interrupted by a buildup of fatty substances.
Cardiomyopathy, where the heart walls become thickened or enlarged.
- How Do You Prepare for an Electrocardiogram Test?
- Ensure your doctor knows all the medications you are taking, as some may interfere with the test results.
- Do not exercise or drink cold water just before the ECG; it may cause inaccurate results.
- Remove watches, rings, jewelry, and any metal items, since they can cause false results.
