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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Duck, NC. Sponsored Topics. The Town of Duck is an incorporated town located in Dare County, North Carolina along the Northern Outer Banks. Originally part of Currituck County to the north, the stretch of the Outer Banks which includes Duck was transferred to Dare County in the early 20th century.