Calculating QT interval duration Count the number of squares from the beginning of the QRS complex to the end of the T wave. Multiply this number by 0.04 second. The normal range is 0.36 to 0.44 second, or 9 to 11 small squares wide.alculating QT interval duration Count the number of squares from the beginning of the QRS complex to the end of the T wave. Multiply this number by 0.04 second. The normal range is 0.36 to 0.44 second, or 9 to 11 small squares wide.
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The Borough of Walnutport had a population of 2,027 as of July 1, 2017. The primary coordinate point for Walnutport is located at latitude 40.7514 and longitude -75.5956 in Northampton County. The formal boundaries for the Borough of Walnutport (see map below) encompass a land area of 0.72 sq. miles and a water area of 0.08 sq. miles. Northampton County is in the Eastern time zone (GMT -5). The elevation is 387 feet. The Borough of Walnutport (GNIS ID: 1215505) has a C5 Census Class Code which indicates an active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent.