12 Lead Electrocardiogram (12 Lead ECG)

Test Details

An electrocardiogram (EKG or ECG) is a vital diagnostic tool used to assess the heart's electrical activity. 3 This non-invasive procedure involves placing small electrodes on the chest and limbs to capture the heart's electrical signals, which are then traced as waveforms on a monitor or paper. These waveforms help doctors evaluate the heart's rhythm, detect any irregularities, and determine any damage or strain on the heart. The test is quick, painless, and can be conducted in just a few minutes. You may be asked to lie down and remain still during the procedure. Small patches (electrodes) are placed on specific exposed areas of the arms, legs, and chest after the skin is cleaned and prepared to ensure good contact. The electrodes are connected through wires to a machine that converts the heart's electrical signals into a graphical representation. An ECG test can detect a range of conditions, including heart attack, heart failure, abnormal heart rhythms (arrhythmias), and issues with pacemaker function. An ECG test can be done while resting, or during exercise as part of a stress test. To detect intermittent irregularities in heartbeats, specialised monitors may be used to record the electrical activity over an extended period.