Cardiology · Emergency Medicine
Corrected QT (Framingham / Sagie) calculator
Enter the published formula inputs below to calculate and interpret this score.
Clinical inputs
ms
Allowed range: 200–700 ms
ms
Allowed range: 300–2000 ms
Result
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Clinical inputs
- QT interval (ms)Accepted range: 200 to 700
- RR interval (ms)Accepted range: 300 to 2000
Primary source
Sagie A, Larson MG, Goldberg RJ, Bengtson JR, Levy D. An improved method for adjusting the QT interval for heart rate (the Framingham Heart Study). Am J Cardiol. DOI: 10.1016/0002-9149(92)90562-D. PMID: 1519533. Scope: Framingham linear QT correction: QTc (s) = QT + 0.154×(1−RR); implemented in ms as QT_ms + 0.154×(1000−RR_ms). (1992)
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