Long QT syndrome: Difference between revisions
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#REDIRECT[[QT prolongation]] | #REDIRECT[[QT prolongation]] | ||
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<div style="font-weight:bold;">📊 QTc (Corrected QT Interval) Calculator [show]</div> | |||
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Revision as of 13:41, 21 March 2026
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📊 QTc (Corrected QT Interval) Calculator [show]
Corrected QT Interval (QTc)
| Parameter | Value |
|---|---|
| QT Interval (ms) | |
| Heart Rate (bpm) | |
| RR Interval (ms) — auto-calculated from HR | ms |
| Results | |
| QTc (Bazett's) — QT / √(RR in sec) | ms |
| QTc (Fridericia) — QT / ∛(RR in sec) | ms |
| Interpretation (Bazett's QTc) | |
|---|---|
| <440 ms | Normal QTc for males. |
| <460 ms | Normal QTc for females. |
| 440–500 ms | Borderline/Prolonged — Monitor closely. Review medications for QT-prolonging drugs. |
| >500 ms | Significantly prolonged — High risk for Torsades de Pointes. Discontinue offending agents. Check Mg²⁺/K⁺/Ca²⁺. |
| References |
|---|
|