o-19岁常用生化指标的变化（新生儿） Lower Upper No.of Analyte Age limit limit samples interval Interval Bilirubin (direct),mg/dL 0 to 14 days 0.33 0.71 171 0290.36 0.67-0.73 15 days to <1 year 0.05 0.30 108 0.040.06 0.27-0.33 1 to <9 years 0.05 020 281 0.05-0.05 0.180.20 9 to <13 years 0.05 0.29 181 0.05-0.10 0.28033 13 to <19 years 0.10 0.39 177 0.05-0.11 0.34-0.46 Bilirubin (total),mg/dL 0 to 14 days 0.19 16.60 166 0.100.29 15.04-17.88 15 days to <1 year 0.05 0.68 245 0.050.10 0.63-0.73 1 to <9 years 0.05 0.40 270 0.050.05 0.36-0.42 9 to <12 years 0.05 0.55 135 0.05-0.10 0.500.61 12 to <15 years 0.10 0.70 161 0.05-0.10 0.64-0.81 15 to <19 years 0.10 0.84 219 0.05-0.11 0.810.89 Calcium,mg/dL 0 to <1 year 8.5 11.0 259 8.4-8.7 10.8-11.1 1 to <19 years 9.2 10.5 897 9.1-9.2 10.5-10.6 CO2.mmol/L 0 to 14 days 5 20 178 55 19-25 15 days to <1 year 10 24 147 9-11 22-25 1 to <5 years 14 24 146 13-16 23-25 5 to <15 years 17 26 488 17-17 26-27 15 to <19 years 1☑ 26 122 16-18 25-27 Creatinine (enzymatic),mg/dL 0 to 14 days 0.32 0.92 147 0.270.39 0.900.98 15 days to <2 years 0.10 036 168 0.10-0.12 0.35038 2 to <5 years 0.20 0.43 155 0.18-0.22 0.410.45 5 to <12 years 0.31 0.61 321 0.290.32 0.60-0.62 12 to <15 years 0.45 0.81 183 0.38-0.46 0.76-0.85 15 to <19 years 0.49 0.84 161 0.47-0.51 0.81-0.88 Clinical Chemistry 58:5(2012) 新生儿期变化显著的常用生化指标的参考区间 0-19岁常用生化指标的变化（新生儿）