title: [Comparative analyses of reference values used in Polish medical diagnostic laboratories for selected biochemical investigations].
abstract: The establishment of reference values comparative ranges for each laboratory test result does not meet expectations. THE AIM OF THE STUDY was to make a comparative analysis of the reference values (RV) used in medical diagnostic laboratories (MLD) in Poland for concentrations in serum or plasma biochemical parameters (potassium, calcium, creatinine, and glucose) in adults.
  
  
  METHODS
  The data source was the information sent to the Centre for Quality Assessment in Laboratory Medicine by MLD participating in programs interlaboratory surveys.
  
  
  RESULTS
  Studies have shown that there is a great diversity of reference values for the analyzed biochemical parameters used in MLD. The study also demonstrated the use by MLD various units of measurement systems (SI and weight-volume).
  
  
  CONCLUSIONS
  A large variation of the reference values in the parameters significantly hinders the interpretation of laboratory results by physician.
authors.affiliation: Centralny Ośrodek Badań Jakości w Diagnostyce Laboratoryjnej w Łodzi. b.przybyl@cobjwdl.lodz.pl
authors.forename: Barbara
authors.initials: B
authors.lastname: Przybył-Hac
authors.forename: Andrzej M
authors.initials: AM
authors.lastname: Brzeziński
authors.forename: Marek
authors.initials: M
authors.lastname: Paradowski
mesh_terms: D000328:Adult; D001786:Blood Glucose / Q000032:analysis*; D002118:Calcium / Q000097:blood*; D019411:Clinical Laboratory Techniques / Q000379:methods* / Q000592:standards; D003404:Creatinine / Q000097:blood*; D006801:Humans; D011044:Poland; D011188:Potassium / Q000097:blood*; D012016:Reference Values; D015203:Reproducibility of Results
chemical_list: D001786:Blood Glucose; D003404:Creatinine; D011188:Potassium; D002118:Calcium