QTc (Fridericia)

Corrected QT interval, Fridericia formula

Heart-rate-corrects the QT interval using the cube root of the R-R interval. Accurate at rate extremes where Bazett fails.

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Appears in these tutorials

See this calculator worked on a real patient, then read the teaching around it.

An introduction to the ECG01_023
Worked example: Sienna Reeves, 19
Open tutorial
Antipsychotics11_022
Worked example: Rebecca Richards, 42
Open tutorial