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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Sweetwater, TN. Sponsored Topics. Sweetwater is a city in Monroe and McMinn counties in the U.S. state of Tennessee, and the most populous city in Monroe County. The population was 5,586 at the 2000 census. Sweetwater is the home of the Craighead Caverns which contains the Lost Sea, the United States' largest underground lake.