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Difficult QT: Difference between revisions
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→QTc is the heart rate corrected QT interval
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* The QT interval should be corrected for the heart rate, as the QT interval shortens with increasing heartrate. | * The QT interval should be corrected for the heart rate, as the QT interval shortens with increasing heartrate. | ||
* Bazetts formula: [[Image:Formule QTc.png]], can be used to calculate the QTc: the heart rate corrected QT. When entering the formula the RR interval should be entered in seconds. The preceding RR interval should be used. You can also use this [[QTc calculator]] | * Bazetts formula: [[Image:Formule QTc.png]], can be used to calculate the QTc: the heart rate corrected QT. When entering the formula the RR interval should be entered in seconds. The preceding RR interval should be used. You can also use this [[QTc calculator]] | ||
* Preferably one uses the average of | * Preferably one uses the average of several QTc measurements | ||
{{clr}} | {{clr}} | ||