title: Accuracy and precision of the i-STAT portable clinical analyzer: an analytical point of view.
abstract: The introduction of a new point-of-care testing (POCT) instrument into the market affects medical practice and laboratory services. The i-STAT is designed to improve the speed in the decision making of the medical profession. However, reliability of results would ensure the quality of laboratory data. We, therefore, made an evaluation of the performance of i-STAT using a disposable cartridge EG7 + which is capable of measuring pH, pO2, pCO2 (blood gas), Sodium, Potassium (Electrolytes), Ionized calcium and Hematocrit with only 10 microliters of lithium heparinized blood in 2 minutes. The results were compared with those obtained from routine methods. The results were found to be accurate, precise and correlated with acceptable methods used routinely in the laboratory.
authors.affiliation: Department of Clinical Chemistry, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand.
authors.forename: P
authors.initials: P
authors.lastname: Pidetcha
authors.forename: S
authors.initials: S
authors.lastname: Ornvichian
authors.forename: S
authors.initials: S
authors.lastname: Chalachiva
mesh_terms: D001774:Blood Chemical Analysis / Q000295:instrumentation*; D001784:Blood Gas Analysis / Q000295:instrumentation*; D002138:Calibration; D019411:Clinical Laboratory Techniques; D004867:Equipment Design; D005069:Evaluation Studies as Topic; D006801:Humans; D019095:Point-of-Care Systems; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013997:Time Factors