Electrocardiogram |  | 
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The electrocardiogram (ECG, or also known as EKG) is a test that records electrical signals from your heart onto a paper strip. The pattern of these signals can help tell the doctor whether your heart is normal, under stress, or experiencing electrical problems, strain, or damage.
Before the test
- Wear loose, comfortable clothing that allows easy access to the chest
- Allow enough time before your ECG to check in. You will likely need to fill out paperwork before the test
During the procedure
- You will be asked to remove your clothing from the waist up and to put on a gown. You will then lie down on your back
- Electrodes (small pads) are placed on your chest, shoulders, and legs
- The electrodes record your heart rhythm and any change in your heart's signals that occurs during the test
- After a few minutes of recording, the healthcare provider will remove the electrodes. The ECG takes about 10 minutes
After the test
Tell your doctor if you:
- Are taking any medications
- Feel any chest discomfort
- Feel as though your heart is beating rapidly or irregularly (palpitations)
- Have ever blacked out
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