儿童尿液中钙和镁的排泄情况。
Urinary excretion of calcium and magnesium in children.
作者信息
Ghazali S, Barratt T M
出版信息
Arch Dis Child. 1974 Feb;49(2):97-101. doi: 10.1136/adc.49.2.97.
Abstract
Urine calcium excretion in healthy children was 2·38±0·66 (SD; no. = 52) mg/kg per 24 hr and urinary magnesium excretion was 2·82±0·79 (SD; no. = 23). The 24-hour urine calcium excretion could be predicted with reasonable confidence from the calcium/creatinine concentration ratio of the second urine specimen passed in the morning. In this specimen the urine calcium/creatinine concentration ratio was 0·14±0·06 (SD; no. = 60) mg/mg and the magnesium/creatinine concentration ratio was 0·21±0·10 (SD; no. = 29) mg/mg. The upper limit of the urine calcium excretion is taken to be 4 mg/kg per 24 hr and that of the calcium/creatinine concentration ratio in the second morning urine is 0·25 mg/mg. After a milk load of 700 ml/1·73 m the urinary calcium/creatinine concentration ratio rose in the first two hours, but in no sample exceeded 0·25 mg/mg.
摘要
健康儿童的尿钙排泄量为每24小时2.38±0.66（标准差；样本数=52）mg/kg，尿镁排泄量为2.82±0.79（标准差；样本数=23）mg/kg。根据上午排出的第二份尿液标本的钙/肌酐浓度比，可以较为准确地预测24小时尿钙排泄量。在该标本中，尿钙/肌酐浓度比为0.14±0.06（标准差；样本数=60）mg/mg，镁/肌酐浓度比为0.21±0.10（标准差；样本数=29）mg/mg。尿钙排泄量的上限设定为每24小时4mg/kg，晨尿中钙/肌酐浓度比的上限为0.25mg/mg。摄入700ml/1.73m的牛奶后，尿钙/肌酐浓度比在最初两小时内升高，但在任何样本中均未超过0.25mg/mg。
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