the electrocardiogram (ecg or ekg) is a noninvasive take a look at that is used to reflect underlying coronary heart conditions with the aid of measuring the electric pastime of the coronary heart. by way of positioning leads (electrical sensing gadgets) on the body in standardized locations, information about many heart conditions may be discovered with the aid of searching out characteristic patterns at the ekg.
ekg leads are attached to the body even as the patient lies flat on a mattress or desk. leads are connected to every extremity (four general) and to six pre-described positions at the front of the chest. a small amount of gel is applied to the pores and skin, which permits the electric impulses of the heart to be extra without problems transmitted to the ekg leads. the leads are attached by way of small suction cups, velcro straps, or by way of small adhesive patches attached loosely to the skin. the check takes approximately 5 minutes and is painless. in some instances, men may additionally require the shaving of a small amount of chest hair to achieve optimum contact between the leads and the pores and skin.