An electrocardiogram (ECG or EKG) measures the electrical
activity of your heart. The heart generates an electrical
signal, which flows out from your heart through your body. Small
electrical sensors, called electrodes, are put on your skin to
sense the electricity that began in your heart. The electrical
activity is then turned into a graph. This can give doctors an
idea of whether your heart is beating normally.. An ECG is used
to: Symptoms that may prompt an ECG include: An ECG may also be
obtained if you: You will be asked to lie quietly on your back
with your shirt off. Six small, sticky pads with attached wires
will be placed across your chest. Others will be placed on your
arms and legs. The wires will connect to the ECG machine. You
will not feel anything during the test. You may resume
activities as recommended by your doctor. Your doctor will
interpret the ECG. Based on the results and your other health
information, you may need more tests or a treatment plan. Call
your doctor if you have heart-rela