Qt Definitions - Philips IntelliVue TRx Instructions For Use Manual

ST/AR QT Interval Algorithm
QT
Definitions
7-16 ST/AR Arrhythmia Monitoring
Draft - 1 Aug 08
Measurement Definition
QT QT interval in milliseconds. The QT interval is the
time between the beginning of the Q wave and the
end of the Twave.
QTc QTc represents the heart rate corrected QT interval.
By default, the Information Center uses the Bazett
correction formula to correct the QT interval for
heart rate. Your system, however, may be set up to
use the Fridericia correction formula.
dQTc The difference between the current QTc value and
the QTc baseline value.
QT-HR The heart rate used to calculate QTc