title: Method for assessment of laboratory turnaround times: comparison before, during, and after analysis.
abstract: OBJECTIVE
  To establish a mechanism to examine the components of turnaround time in a representative cross-section of laboratory users; and to identify potential areas for improvement.
  
  
  METHODS
  Information was collected manually from result reports received by eight laboratory users: three wards in the main hospital, four GP practices, and one local psychiatric hospital. This was combined with data from the departmental computer files to create a spreadsheet detailing different time points in the processing of a specimen, from venepuncture to receipt of result report.
  
  
  RESULTS
  At the main hospital, 80% of samples arrived within two hours of venesection and 95% by four hours; 75% of samples were analysed within two hours; 85% of results arrived in the wards within six hours of printing, although 12% took more than 18 hours to arrive; median overall time six hours. At the satellite (psychiatric) hospital, all samples arrived within seven hours of venesection; 45% were analysed within two hours--the rest the following morning; there were highly variable post-analytical times, minimum 18 hours, maximum 122 hours; the median overall time was 69 hours. Twenty five per cent of samples from GPs took more than 20 hours to arrive; 75% were analysed within two hours, the rest took over 18 hours--waiting overnight; the post-analytical times were highly variable, minimum 22 hours, maximum 122 hours; the median overall time was 50 hours.
  
  
  CONCLUSIONS
  The method is easily repeatable and demonstrates the need for local improvement in the post-analytical period. Although specific to the individual data handling system for one laboratory, this method may be used as a basis for other laboratories in pathology disciplines to undertake a representative assessment of turnaround times for different groups of laboratory users.
authors.affiliation: Institute of Biochemistry, Glasgow Royal Infirmary.
authors.forename: W S
authors.initials: WS
authors.lastname: Smellie
authors.forename: J
authors.initials: J
authors.lastname: Johnston
authors.forename: P J
authors.initials: PJ
authors.lastname: Galloway
mesh_terms: D003430:Cross-Sectional Studies; D017598:Efficiency, Organizational; D006801:Humans; D008485:Medical Audit / Q000379:methods*; D010338:Pathology, Clinical / Q000592:standards*; D013997:Time Factors