title: An interventional program for diagnostic testing in the emergency department.
abstract: OBJECTIVE
  To evaluate an intervention developed to improve test-ordering practice.
  
  
  METHODS
  Public hospital emergency department with an annual census of 42 500. The study comprised a six-month pre-intervention stage (November 1998 to April 1999), which was compared with a similar post-intervention period (November 1999 to April 2000), and trends were examined over an 18-month post-intervention period (May 1999 to October 2000).
  
  
  METHODS
  The intervention comprised three integrated components: implementation of a protocol for test ordering; education program for medical staff; and audit/feedback process.
  
  
  METHODS
  Test utilisation (assessed as cost per patient).
  
  
  RESULTS
  There was a 40% decrease in the ordering of investigations in the emergency department (95% CI, 29%-50%), with test utilisation falling from a mean of $39.32/patient to $23.72/patient. The decrease was similar for both laboratory and imaging tests and was sustained for the duration of the 18-month follow-up.
  
  
  CONCLUSIONS
  Our intervention appears to have produced long term modification of test ordering in the emergency department of a public teaching hospital.
authors.affiliation: Lyell McEwin Health Service, Haydown Road, Elizabeth Vale, SA 5112, Australia. peter.stuart@nwahs.sa.gov.au
authors.forename: Peter J
authors.initials: PJ
authors.lastname: Stuart
authors.forename: Shelley
authors.initials: S
authors.lastname: Crooks
authors.forename: Mark
authors.initials: M
authors.lastname: Porton
mesh_terms: D001315:Australia; D003955:Diagnostic Tests, Routine / Q000145:classification / Q000191:economics / Q000706:statistics & numerical data*; D004636:Emergency Service, Hospital / Q000458:organization & administration*; D006801:Humans