ECG

ecg

An ECG produces a pattern reflecting the electrical activity of the heart. It can give information regarding the rhythm of the heart (whether or not the electrical impulse consistently arises from the part of the heart where it should and at what rate), whether that impulse is conducted normally throughout the heart, or whether any part of the heart is contributing more or less than expected to the electrical activity of the heart. It can also give information regarding the balance of salts in the blood or even reveal problems with sodium channels within the heart muscle cells