QT Interval Correction (EKG)

Input

QT Interval
Heart Rate

Results

Important: Inputs must be complete to perform calculation.


RR Interval
QTI Corrected

Decimal Precision

Notes

Use caution when interpreting the results of QT interval correction in the setting of drug-induced QT prolongation.^[2]

Equations used

RRInterval = 60 / HeartRate

QTICorrected = QTInterval / sqr(RRInterval)

References

Bazett HC. An analysis of the time relationships of electrocardiograms. Heart. 1920;7:355-70.
Malik M. Problems of heart rate correction in assessment of drug-induced QT interval prolongation. J Cardiovasc Electrophysiol. 2001 Apr;12(4):411-20. PubMed ID: 11332559

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