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 Creek Village. Duck Creek Village is an unincorporated community in Kane County, Utah, United States. It is located on the edge of Cedar Mountain, with an elevation of 8,507 feet (2,593 m). Although Duck Creek Village is unincorporated, it has a post office, with the ZIP code of 84762.  1 Duck Creek Village, Utah. Geographic Names Information System. 2  Zip Code Lookup Archived May 17, 2011, at the Wayback Machine.