It is called ECG as an electrocardiogram, if it is an evaluation that is done to know the electrical activity of the heart, are performed in the emergency and internal medicine units, consists in the placement of electrodes in different parts of the body, these electrodes send a signal that is recorded in an electrocardiograph, there are ways to perform the examination, one at rest where the patient is relaxed and still, and another where stress test where the patient is kept practicing some physical activity.
With these characteristics it is easier to perform a basic interpretation of an electrocardiogram, to determine if there is any anomaly or on the contrary everything works correctly, it is recommended that the patient ask the doctor any doubts or concerns you have about his results, considering that only qualified medical personnel can correctly interpret the ECG.