title: Computerized threshold determination for automated ABO/Rh tests.
abstract: Automated microplate blood-grouping systems rely on a pair of thresholds to determine whether reactions are positive or negative. The determination of these thresholds is a critical step in the quality control process for automated microplate blood grouping. A simple method has been developed for automatically setting these thresholds. A more sophisticated method, which required substantial computational complexity, was also tried. The more complex method did not perform better than the simple method described here.
authors.affiliation: Product Development Laboratory, American Red Cross Blood Services, Rockville, Md.
authors.forename: M L
authors.initials: ML
authors.lastname: Severns
authors.forename: L M
authors.initials: LM
authors.lastname: Kline
authors.forename: K M
authors.initials: KM
authors.lastname: Epley
mesh_terms: D000017:ABO Blood-Group System; D001788:Blood Grouping and Crossmatching / Q000379:methods*; D002965:Classification; D003201:Computers; D003951:Diagnostic Errors; D004056:Differential Threshold; D001330:Electronic Data Processing; D006801:Humans; D012204:Rh-Hr Blood-Group System; D012984:Software
chemical_list: D000017:ABO Blood-Group System; D012204:Rh-Hr Blood-Group System