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- Title
Urinary sodium to creatinine ratio in healthy infants.
- Authors
Mann, Michelle; Waz, Wayne; Poupoulos, James; Kadle, Rohini; Korn, Ariella; Vaughan, Russell; Borowitz, Drucy
- Abstract
Rationale Sodium is essential for adequate growth; the daily requirement in infants is 2 to 3 mmol/kg/d. Objectives The study aimed to establish a reference range for the ratio of urinary sodium (UNa) to creatinine (UCr) in healthy infants in a suburban setting in the United States. Methods UNa and UCr were measured in healthy infants and UNa:UCr was calculated. Daily sodium intake was estimated by parental report. Results Mean estimated sodium intake in the 71 infants was 1.34 mEq/kg/d (95% confidence interval = 1.23-1.44). The mean UNa:UCr was 11.73 (95% confidence interval = 10.24-13.23) and did not differ significantly in age-groups. There was no direct correlation between sodium intake and UNa:UCr in healthy infants. Conclusions The UNa:UCr was 11.73 in this population of healthy infants. This likely reflects the appropriate physiologic response to sodium intake in the study population, which was at the lower end of the usual estimated needs for infants.
- Publication
Clinical pediatrics, 2012, Vol 51, Issue 9, p852
- ISSN
1938-2707
- Publication type
Journal Article
- DOI
10.1177/0009922812449377