Unnecessary repeat requesting of tests: an audit in a government hospital immunology laboratory

J Clin Pathol. 2005 May;58(5):457-62. doi: 10.1136/jcp.2004.021691.

Abstract

Unnecessary repeat requesting of tests can make up a large proportion of a laboratory's workload. This audit set out to establish the size of this problem and to identify the circumstances under which these repeat requests were made in a government tertiary hospital immunology laboratory. The numbers of tests for immunoglobulin measurement, common autoantibodies, and tumour markers that were repeated over a 12 month period were analysed by interrogating the Delphic laboratory computer system using a management information system for raw data enquiry protocol. Repeat requests within 12 weeks of a previous request made up 16.78% of the total workload. The total cost of the tests was estimated at 132 151 US dollars. The waste of technician time and reagents as a result of unnecessary repeat testing is excessive. Many of these tests might be eliminated with the use of interventions such as computerised reminders.

MeSH terms

  • Autoantibodies / analysis
  • Biomarkers, Tumor / analysis
  • Costs and Cost Analysis
  • Diagnostic Tests, Routine / statistics & numerical data*
  • Humans
  • Immunoglobulins / analysis
  • Laboratories, Hospital / statistics & numerical data*
  • Medical Audit / methods*
  • Unnecessary Procedures / statistics & numerical data*

Substances

  • Autoantibodies
  • Biomarkers, Tumor
  • Immunoglobulins