ABSTRACT
Objective To investigate the reference interval of neonatal nutrition assessment biochemical factor,including total protein (TP),serum albumin (ALB),serum prealbumin (PA) and serum retinol binding protein (RBP).Methods From December 2016 to August 2017,403 serum specimens were collected from health neonates in Hunan Children's Hospital and the serum concentration of TP,ALB,RBP and PA was detected.The results of each item were grouped according to sex and age,and then the reference interval of each item was established.Results When data was separated by gender of each item,there was no statistical significance between each group of each item (P ＞ 0.05).For the TP,ALB and RBP,separating the data of each item by weeks,there were also no statistical significance between each group (P ＞ 0.05).But there was statistical difference between one week old group and the rest groups in the data of PA (P ＜ 0.05).The normal reference interval of neonatal serum total protein,albumin,retinol binding protein and pre-albumin are as follow:(40.69-65.72) g/L,(28.77-42.3) g/L,(12.13-33.19) mg/L,(42.26-161.52) mg/L (no more than 7 days old) and (59.05-170.23) mg/L (range from 8 to 28 days old).Conclusions We can establish the reference interval of TP,ALB and RBP without differentiating gender and weeks.But for the PA,the reference interval of one-week-old neonate needs to differentiate from other neonates.