The electrocardiogram (ECG or EKG) is a technique that utilizes an electrocardiograph to record from the surface of the body a graphic representation of the changes in electrical activity produced by the heart during each cardiac cycle. The bioelectrical changes in the heart itself are reflected on the body surface through the conductive tissues and fluids surrounding the heart, so that all parts of the body also undergo regular electrical activity during each cardiac cycle. The electrocardiogram, which is recorded by placing a measuring electrode on a certain part of the body surface, is the electrocardiogram that is routinely recorded in the clinic.
Expanded Information
The electrocardiogram is one of the most commonly used clinical tests and is widely used. Applications include:
1. Recording the electrical activity of the normal human heart.
2, to help diagnose cardiac arrhythmias.
3, to help diagnose myocardial ischemia, myocardial infarction and site.
4, Diagnose heart enlargement and hypertrophy.
5, Determine the effect of drugs or electrolyte conditions on the heart.
6, determine the status of artificial heart pacing.
General knowledge of electrocardiography:1, electrocardiography is not a panacea, some of the damage to the heart muscle and functional defects can not always be shown. Preventive examination of the heart also needs to be combined with a variety of tests, comprehensive analysis, in order to make a correct judgment.
2. In general, if you are having an EKG, you need to take off your clothes, and not only do you need to take off your clothes, but the doctor also needs to touch your hands to check if there is any abnormality in your breasts, so in order to make the examination easier, you need to pay more attention to what you're wearing. Women who want to minimize their discomfort can learn about the hospital's specialists before they undergo a gynecological examination, and can choose a female specialist to conduct the examination.
Reference to Baidu Encyclopedia - Electrocardiogram
Reference to People's Daily Online - What is an electrocardiogram? Do I need to undress for an ECG?