[Urinary excretion of calcium, magnesium, uric acid and oxalic acid in normal children].
A group of normal children with a free diet was studied. Their first morning urine (n = 176) and their 24-hour-urine (n = 64) was collected, valuing the calciuria, magnesiuria, uricosuria and oxaluria, establishing their relationship with a dietetic survey. Ca/Cr rate value was 0.13 +/- 0.7 mg/mg in the morning urine, and 0.12 +/- 0.06 mg/mg in the 24-hour-urine. Calciuria (mg/kg/day) was 2.46 +/- 1.45, higher to that noticed by other authors. Prevalence of hypercalciuria was 7.8%. We haven't noticed any correlation between the calciuria (mg/kg/day) and the consumption of proteins and carbohydrates. A positive correlation was found between Ca/Cr and Na/Cr rate, together with high natriuria (3.87 +/- 1.35 mEq/kg/day); these findings could justify the elevated calciuria in the children studied. Mean values of magnesium and uric acid were 0.04 +/- 0.02 and 0.30 +/- 0.08 mg/100 ml FG, respectively and the oxaluria was 34.51 +/- 16.35 mg/day/1.73 m2.
Hernández Marco
R
R
Departamento de Pediatría, Hospital Clínico Universitario, Valencia.
Núñez Gómez
F
F
Martínez Costa
C
C
Fons Moreno
J
J
Peris Vidal
A
A
Brines Solanes
J
J
D000293:Adolescent; D002118:Calcium / Q000652:urine*; D002648:Child; D002675:Child, Preschool; D002940:Circadian Rhythm; D003404:Creatinine / Q000652:urine; D005260:Female; D006801:Humans; D008274:Magnesium / Q000652:urine*; D008297:Male; D010070:Oxalates / Q000652:urine*; D019815:Oxalic Acid; D014527:Uric Acid / Q000652:urine*
D010070:Oxalates; D014527:Uric Acid; D019815:Oxalic Acid; D003404:Creatinine; D008274:Magnesium; D002118:Calcium
Excreción urinaria de calcio, magnesio, ácido úrico y ácido oxálico en niños normales.