An electrocardiogram (ECG or EKG) is a procedure used to detect your heart’s electrical signals. The data gathered from ECG are used to determine heart problems and the status of its health. ECG is a painless, non-invasive diagnostic procedure that can monitor heart conditions for patients of all ages. At Cairns West, we use ECG to detect abnormal heart rhythms, blocked or narrowed arteries that can lead to chest pain or heart attack, monitor heart condition before or after undergoing surgery, or have a history of a heart attack. If our specialists find any problems based on your ECG, he or she can recommend additional tests to see if treatment is necessary.