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Cardiology Institute

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QT interval

February 12, 2022 Andrew To

We are often asked about how best to calculate the QT interval. This is the simplest way.

  • Use leads II, V5

  • Count the number of small boxes for the QT

  • Note heart rate

Use this website, and put in the two numbers, to get QTc

In Cardiac Investigations, ECG Case Tags ECG, QT interval
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Copyright @2024 Cardiology Institute; All photos copyright @2024 Andrew To