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Tutorial
QTc calculator
Example:
(standard paper speed 25 mm/sec)
n1 (number of grid boxes between QT interval)
n2 (number of grid boxes between RR interval)
n1 = 9
n2 = 24
QTc (Bazett fomula) = QT/sqr(RR)
QTc (Fridericia fomula) : Cardio-oncology = QT/CBRT(RR)
QTc (Framingham fomula) = QT+ 0.154 * (1-RR)
QTc (Hodges formula) = QT + (0.00175 * (60/RR) - 60 ))
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