The correction of urine specific gravity for temperature is to add 0.001 to specific gravity reading for each 3 degree Centigrade above calibration temperature. Alternatively, subtract 0.001 for each 3 degrees below calibration temperature.
Measurement of specific gravity: refractometer
correction factor for temperature =
= (((temperature in centigrade) - (calibration temperature)) / 3) * 0.001
urine specific gravity corrected for temperature =
= (measured specific gravity) + (correction factor for temperature)
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Specialty: Nephrology, Clinical Laboratory
