검량물질의 목표치 설정에 대한 연구

Abstract

Calibration in clinical chemistry laboratory reduce bias that is an error that always in one direction and is predictable, in contract to random errors that may either be positive or negative and whose direction can not be predicted. Target value used in proficiency testing to designate the correct value, usually estimated by the mean of all participant responses, after removal of outliers, or by the mean established by definitive or reference methods. We studied to prcxluce target value in our own laboratory in using multi-calibrator during 8 months for five times each 10 tests by within-run and between-run. Setting of target value accurately in calibration process contributed to reduce systematic error in order to control total error in clinical chemistry laboratory.