[Reference value of urine tangible component analyzer for healthy adults in Guangzhou area]

Objective: To establish the normal reference for iQ200 urine component analyzer of healthy adults in Guangzhou area. Methods: Five hundreds and four normal urine samples were screened from the healthy population with the normal dry chemistry results of urine and normal biochemical results of plasma, and the RBC, WBC and epithelial cells were determined by iQ200 urine component analyzer. Then 1 ml urine was accurately collected from the samples by centrifugation and the RBC, WBC and epithelial cells were counted with neubauer counter by two inspectors. The samples were divided into 4 groups according to the age (18-45 years and >45 years old) and sex (male and female). The counts of RBC, WBC and epithelial cell of 4 groups with iQ200 urine component analyzer and neubauer counter were statistically analyzed. Results: The difference was not significant in RBC, WBC and epithelial cells between the results of iQ200 urine component analyzer and the results of neubauer counter(all P>0.05). There was not significant difference of RBC, WBC and epithelial cells of the same sex and different age groups (all P>0.05). There was significant difference of RBC, WBC and epithelial cells between the different gender groups(all P<0.05). The 95% confidence interval reference range of iQ200 urine component analyzer were as follows: RBC 0-7 cells/μl (male), 0-8 cells/μl (female); WBC 1-6 cells/μl (male), 1-8 cells/μl (female); epithelial cells 0-2 cells/μl (male), 0-8 cells/μl (female). Conclusion: The reference of this research of iQ200 urine component analyzer will be useful for the laboratory and clinic, but still need the verification experiment before using in the laboratory.