QT / QTc Interval Measurement in Prominent U Wave If the U wave is distinct from the T wave, and much smaller in size, most cardiologists do not include it in the measurement of the QT interval. However, some cardiologists will include it if the U wave amplitude is > 50% that of the T wave. - Dr. Eric Strong @DrEricStrong - Strong Medicine https://www.youtube.com/c/EricsMedi #QT #QTc #Interval #Measurement #UWave #cardiology #diagnosis #ecg #ekg #electrocardiogram