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.
73 Acres Duck River, Hickman County, Tennessee. $292,000. Unspoiled Swan Creek winds its way through a picturesque 73 acres of fertile land, filled with promise and natural seclusion. A rare gem in a stretch of sought-after land that rarely comes to market - is now available for discerning buyers.
As of 2010, Shelby County was both Tennessee's most populous county, with 927,644 residents, and the largest county in area, covering an area of 755 sq mi (1,955 km 2). The least populous county was Pickett County (4,945) and the smallest in area was Trousdale County, covering 114 sq mi (295 km 2).