The QT interval comprises the QRS-complex, the ST-segment, and the T-wave. One difficultly of QT interpretation is that the QT interval gets shorter as the heart rate increases. Thus at a heart rate of 60 bpm, the RR interval is 1 second and the QTc equals QT/1.
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Paris-Henry County, Tennessee. You might think we are big â Kentucky Lake, the largest manmade lake in the Southeast, a big catfish on a pole, the Worldâs Biggest Fish Fry, big smiles, big hearts that volunteer to help one another and raise over $200,000 a year for local charities selling homemade pies and casseroles.