Correlation between urine specific gravity and osmolality in infants with acute diarrhea.

ABSTRACT

A total of 447 specimens of urine collected from infants with acute diarrheal disease at periods of 0-8, 8-16, 16-24, 24-48 and 48-72 hours after admission were studied for correlation between specific gravity and osmolality, specific gravity and sum of sodium and potassium, and osmolality and sum sodium and potassium. There is significant correlation between specific gravity and osmolality of urine from combination of every period 0-8 hour, and 48-72 hour period. In contrast, there is no correlation between specific gravity and osmolality with sum of sodium and potassium of urine at every period of the study. The correlation between specific gravity and osmolality of urine were tabulated and will be used as guidelines for monitoring adequact of hydration in infants with diarrheal disease.