What Is An Electrocardiogram?

Potential Types

The most common type of electrocardiogram appears to be the resting 12-lead form. It may detect heart abnormalities while patients are sitting still. As mentioned, stress tests seem to check the heart's electrical activity while the patient is exercising. It seems that patients will walk or run on a treadmill most during such a test. Some patients may undergo a cardiopulmonary exercise test. This appears to be an advanced stress test. It should test the patient's lungs, muscles, and heart at the same time. They may need a mouthpiece as well as the electrodes during this type of electrocardiogram.

In some cases, doctors may order a Holter monitor. It seems that this helps detect electrical issues in the heart over an extended period. Patients may wear this device for twenty-four to forty-eight hours. However, they may be able to wear it longer if it is deemed necessary. Doctors seem to use a signal-averaged electrocardiogram in combination with other types. This version may be more sensitive to finding heart problems. It seems to last between five to twenty minutes.

Reveal some potential preparation instructions next.