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Articles/The QT and QTc Interval

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ECG

The QT and QTc Interval

Video lecture: Assessment of the QT interval (QTc interval)

Corrected QT interval (QTc) calculator

Open the calculator →

Updated January 5, 2025

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Related articles

  • QT duration & corrected QT (QTc) duration: ECG features & implications
  • 🟠 Calculate corrected QT interval (QTc interval)
  • Long QT (QTc) interval, long QT syndrome (LQTS) & torsades de pointes
  • Approach to ECG Interpretation, Assessment of Rhythm and the P-wave
  • The Electrical Axis of the Heart

Related calculators

  • Corrected QT interval (QTc)
  • Tisdale Score for QT prolongation
  • HFA-ICOS cardio-oncology baseline risk assessment for VEGF inhibitors

Related tests

  • ECG Test - ECG Interpretation in Athletes — An athlete presents with a QTc interval of ≥500 ms on an ECG. What is the most a…
  • ECG Test - ECG Interpretation in Athletes — An athlete presents with a prolonged QTc interval (e.g., QTc ≥470 ms for males o…
  • ECG Test - ECG Interpretation in Athletes — The QT interval corrected for heart rate (QTc) is ideally measured using Bazett'…
  • ECG Test - ECG Interpretation in Athletes — According to international recommendations, what QTc interval is considered prol…
  • ECG Test - ECG Interpretation in Athletes — According to international recommendations, what is considered a prolonged QTc i…
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