title: Types and frequency of preanalytical errors in haematology lab.
abstract: OBJECTIVE
  This study was conducted to evaluate the frequency of the preanalytical errors occurring in a haematology laboratory.
  
  
  METHODS
  A retrospective study was conducted by collecting and analyzing data in duration of one year in the haematology section of the laboratory. Data for all the preanalytical variables according to the predefined categories were scanned. Both IPD and OPD patients were segregated.
  
  
  RESULTS
  A total of 135808 samples were received in haematology lab during this period, out of which in 1339 samples, preanalytical errors were found, which approximately constituted 1 % of all samples.
  
  
  CONCLUSIONS
  Highest number of samples were rejected due to misidentification, that is 0.35 % and least number were rejected due to dilution of the samples, that is 0.04 %.
authors.affiliation: Assistant Professor , Department of Pathology, Subharti Medical College , Meerut, U.P., India .
authors.forename: Shashi
authors.initials: S
authors.lastname: Upreti
authors.affiliation: Assistant Professor, Department of Pathology, Subharti Medical College , Meerut, U.P., India .
authors.forename: Sanjay
authors.initials: S
authors.lastname: Upreti
authors.affiliation: Professor & Head, Department of Pathology, Subharti Medical College , Meerut, U.P., India .
authors.forename: Rani
authors.initials: R
authors.lastname: Bansal
authors.affiliation: Post Graduate Student, Department of Pathology, Subharti Medical College , Meerut, U.P., India .
authors.forename: Nadia
authors.initials: N
authors.lastname: Jeelani
authors.affiliation: Assistant Professor, Department of Pathology, Subharti Medical College , Meerut, U.P., India .
authors.forename: Vinay
authors.initials: V
authors.lastname: Bharat
keywords: Haematology; Laboratory; Pre–analytical errors