FANDOM


Electrocardiography (ECG)
Cardioshop 2057 5301286


12 Months / 15 Minutes
12 Months / 30 Minutes
12 Months / 60 Minutes
24 Months / 30 Minutes
0 Months / 120 Minutes


Batteries, Paper, Electrodes, Gel

About

Electrocardiography (ECG) is the recording of the electrical activity of the heart over time via skin electrodes. It is a noninvasive recording produced by an electrocardiograph device. Electrical impulses in the heart originate in the sinoatrial node and travel through the intrinsic conducting system to the heart muscle.The impulses stimulate the myocardial muscle fibres to contract and thus induce systole. The electrical waves can be measured at selectively placed electrodes (electrical contacts) on the skin. Electrodes on different sides of the heart measure the activity of different parts of the heart muscle. An ECG displays the voltage between pairs of these electrodes, and the muscle activity that they measure, from different directions, also understood as vectors. This display indicates the overall rhythm of the heart and weaknesses in different parts of the heart muscle. It is the best way to measure and diagnose abnormal rhythms of the heart, particularly abnormal rhythms caused by damage to the conductive tissue that carries electrical signals, or abnormal rhythms caused by levels of dissolved salts (electrolytes), such as potassium, that are too high or low. In myocardial infarction (MI), the ECG can identify damaged heart muscle. But it can only identify damage to muscle in certain areas, so it can't rule out damage in other areas. The ECG cannot reliably measure the pumping ability of the heart; for which ultrasound-based (echocardiography) or nuclear medicine tests are used.

German surname

In fact, used by Americans ECG is mistakenly called by its German name "Elektrokardiogramm (EKG)".

Manufacturers

Models

  • PageWriter M1700A (HP)
  • PageWriter Touch 860284 (HP)
  • Schiller AT (Welch Allyn)

Second Source Parts

Second Source Service

References


Links

See also

Ad blocker interference detected!


Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.