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27. The human electrocardiogram (ECG). Electrocardiography. Bipolar and unipolar leads: Difference between revisions
27. The human electrocardiogram (ECG). Electrocardiography. Bipolar and unipolar leads (view source)
Revision as of 10:27, 5 January 2023
, 5 January 2023→The 12 lead ECG:
(Created page with "The human electrocardiogram, often called ECG, measures the electrical activity of the heart over time using electrodes placed on specific parts of the body. This is possible because a small part of the electrical impulse produced by the heart spreads into all parts of the body, including the skin. The cardiac impulse travels from the right atrium along the septum toward the apex of the heart, in a downward diagonal direction. == Characteristics of a normal ECG == A no...") |
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=== The 12 lead ECG: === | === The 12 lead ECG: === | ||
[[File:Normal ECG 2.png|thumb|Normal ECG]] | |||
3 and 3 leads are usually measured simultaneously, and all the 12 leads are shown together on a piece of ECG paper. As you can see from the below ECG the waves look different in different leads. Lead II is the one which is usually used as an example ECG. | 3 and 3 leads are usually measured simultaneously, and all the 12 leads are shown together on a piece of ECG paper. As you can see from the below ECG the waves look different in different leads. Lead II is the one which is usually used as an example ECG. | ||