What Is an Electrocardiogram?

By jolene

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4. Equipment

Most ECG machines nowadays are digital instead of analog. The Heart Rhythm Society (HRS), American Heart Association (AHA), and American College of Cardiology (ACC) have guidelines regarding the technical standards that are required for an ECG recording equipment. Based on the morphology, these machines can show their preliminary findings. Filters are applied to the electrical signal to compensate for low-frequency signals such as those seen during respiration. The filter increases for the pediatric population. An ECG is performed with the patient lying quietly on their back. The skin should be clean and trimmed of hair. A mild abrasive pad can also be used to prepare the skin for lead attachment.