Abstract: Objective To compare the consistency of ROCHE URYSIS-2400 and AIKELAI AX-4030 urine dry-chemistry analyzers. Methods A total of 500 urine specimens were detected by the 2 kinds of urine chemistry analyzers in parallel, and the results were analyzed statistically by positive detection rates and accordance rates. A total of 250 cases were randomly selected for reviewing erythrocytes (ERY) and leulcocytes (LEU) by urine sediment microscopy. Experiments by adding vitamin C were used to evaluate URYSIS-2400 and AX-4030 anti-interference abilities against vitamin C. Results The mean difference percentage of specific gravity (SG) between the 2 analyzers was <1%, and all the general consistency rates of the remaining 9 projects were> 90%. The consistency rates of URYSIS-2400 and AX-4030 were 82.4% and 84.4% with urine sediment microscopy on ERY, and 76.0% and 83.2% on LEU. URYSIS-2400 and AX-4030 anti-interference abilities against vitamin C were up to 50mg/dL on glucose (GLU) and ERY. Conclusions There is a good consistency between the results of URYSIS-2400 and AX-4030, but urine chemistry analyzer is used only for screening,and the results should be reviewed by urine sediment microscopy in order to meet clinical needs.

Key words: Urine dry-chemistry analyzer, Comparison test, Urine sediment microscopy