未成年人尿钙与肌酐比值测定及其意义

目的：探讨未成年人尿钙／肌酐（Ｃａ＾２＋／Ｃｒ）比值的分布特征、影响因素及其对高钙尿症的诊断价值。方法：对上海１８３３例３～１８岁未成年人行尿钙，尿Ｃｒ普查测定，１５４例行２４小时尿钙定量分析。结果：尿Ｃａ＾２＋／Ｃｒ值呈偏 春第９５石分位数为０．２８５，与性别无关，但不同年龄和地区之间略有差异。对高钙尿症诊断的敏感性为９８．９％，特异性为５９．０％。结论：尿Ｃａ＾２＋／Ｃｒ测定是一简便而实用的高

Measurement of the urinary calcium to creatinine ratios in non-adult and its significance

Objective: To investigate the frequency distribution and influencing factors of urinary calcium to creatinine ratios (Ca 2+ /Cr) and to evaluate its value on diagnosis of hypercalciuria. Methods: Urinary calcium and creatinine were measured in 1 833 non adult aged 3 to 18 and 24 hour urine calcium excretion were quantified in 154 selected subjects. Results: The frequency distribution of Ca 2+ /Cr was shown skews and 95 percentile of Ca 2+ /Cr was 0.285. The value of Ca 2+ /Cr was related to age and district where the subjects lived, but not to sex. The sensitivity and specificity of the Ca 2+ /Cr test for hypercalciuria were 98.9% and 59.0%, respectively. Conclusion:A random urine Ca 2+ /Cr could serve as a simple and useful screening test for hypercalciuria.