What is the use of a QTc Calculator?
The QTc Calculator is a tool used to correct the QT interval of an ECG based on heart rate. This helps in identifying potential heart rhythm abnormalities like Long QT Syndrome (LQTS), which can lead to arrhythmias or sudden cardiac arrest. QTc values are derived using formulas like Bazett's, Fridericia, Framingham, and Hodges. The calculator adjusts for heart rate variability, providing more accurate assessments in clinical or personal health monitoring scenarios.
Formula: Common QTc formulas include:
- Bazett: QTc = QT / √RR
- Fridericia: QTc = QT / ∛RR
- Framingham: QTc = QT + 0.154(1-RR)
- Hodges: QTc = QT + 1.75(Heart_Rate - 60)
How to use this website?
To use the QTc Calculator, input the QT interval (ms) and heart rate (bpm). The tool automatically calculates the RR interval and QTc values using multiple correction formulas. The results are displayed in a vertical table, with step-by-step solutions provided below. Use the "Clear" button to reset the fields.
| Parameter | Value |
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FAQs
1. What is QTc?
QTc is the corrected QT interval on an ECG, adjusted for heart rate variations using specific formulas like Bazett’s or Fridericia’s.
2. Why is QTc important?
QTc helps detect heart conditions like Long QT Syndrome, which can lead to arrhythmias or sudden cardiac arrest.