Study on Cation-Anion Composition of Urine in Normal Preschool Children |
Sung Won Park, M.D. |
Department of Pediatrics, College of Medicine, Seoul National University |
학동전기 아동에서의 뇨중 양_음이온 구성성분에 관한 연구 |
박성원 |
서울대학교 의과대학 소아과학교싣 |
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Abstract |
The 24 hour urinary excretion of creatinine, sodium, potassium, calcium, titrable acidity, ammonia,
chloride and phosphate in 28 normal preschool children from 4 to 6 years of age was measured'
with aims to investigate the cation-anion composition in urine.
The results obtained are as follows;
1. The average amount of sodium chloride excretion was 4.7 gm/d, suggestive of excessive
intake of salt in preschool children.
2. The average amount of potassium excretion was 7.8土5 5 mEq/d, which is about equivalent:
to daily amount of obligatory loss in this age.
3. The average excretion of calcium was 62.9±46.6 mg/d.
4. Excretion of titrable acidity and ammonia was 9.4±2.0 mEq/d and 265.4±82.1 mg/drespectively.
5. Phosphate excretion was 254.0±89.2 mg/d.
6. The major component of cation in urine was sodium which occupies about. 71% of all cationsin urine,
and that of anion in urine was chloride, being 60.5% of all anions in urine. The proportion of titrable acidity
and ammonia was found to be 20.5% of all cations in urine.
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