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Basics: Difference between revisions
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→The different ECG waves
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The origin of the '''U wave''' is unknown. This wave possibly results from "afterdepolarizations" of the ventricles. | The origin of the '''U wave''' is unknown. This wave possibly results from "afterdepolarizations" of the ventricles. | ||
{{Box| | |||
The letters "Q", "R" and "S" are used to describe the QRS complex: | The letters "Q", "R" and "S" are used to describe the QRS complex: | ||
*Q: the first negative deflection after the p-wave. If the first deflection is not negative, the Q is absent. | *Q: the first negative deflection after the p-wave. If the first deflection is not negative, the Q is absent. | ||
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*R`: is used to describe a second R-wave (as in a [[RBBB|right bundle branch block]]) | *R`: is used to describe a second R-wave (as in a [[RBBB|right bundle branch block]]) | ||
See figure for some examples of this. | See figure for some examples of this. | ||
}} | |||
{{clr}} | {{clr}} | ||