1 If the T wave has two positive deflections, the taller deflection should be chosen. If the T wave is biphasic, the end of the taller deflection should be chosen.  The QT interval starts at the beginning of the QRS interval and ends where the tangent and baseline cross.
Duluth, GA. Online Offers. Duluth is a city in Gwinnett County, Georgia, and a suburb of Atlanta, and is an increasingly more affluent and developed suburb of Atlanta. Unincorporated portions of Forsyth County also have Duluth as a mailing address, though this area is outside city limits. Much of the adjacent city of Johns Creek (incorporated in 2006) uses one of the Duluth ZIP codes. The population of Duluth was 26,668 at the 2010 census, making it the second most populous city in Gwinnett County, behind Lawrenceville. Duluth is a suburb of Atlanta, close to Interstate 85.
Over the course of the year, the temperature in Duluth typically varies from 7Â°F to 78Â°F and is rarely below -15Â°F or above 88Â°F. The warm season lasts for 103 days, from June 5 to September 16, with an average daily high temperature above 66Â°F. The hottest day of the year is July 19, with an average high of 78Â°F and low of 60Â°F. The cold season lasts for 103 days, from November 26 to March 9, with an average daily high temperature below 34Â°F. The coldest day of the year is January 20, with an average low of 7Â°F and high of 22Â°F.