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.

Links

Publisher Full Text

Authors

Mann M, Waz W, Poupoulos J, Kadle R, Korn A, Vaughan R, Borowitz D

Institution

Baylor College of Medicine, Houston, TX 77030, USA. mcmann@texaschildrenshospital.org

Source

Clinical pediatrics 51:9 2012 Sep pg 852-5

MeSH

Age Distribution
Biological Markers
Creatinine
Cross-Sectional Studies
Diet
Diet Surveys
Humans
Infant
Infant, Newborn
Linear Models
New York
Reference Values
Sodium
Sodium, Dietary
Suburban Health

Pub Type(s)

Journal Article

Language

eng

PubMed ID

22718704