title: Effect of "standard order" deletion on emergency department coagulation profile use.
abstract: OBJECTIVE
  To determine whether the test ordering of physicians working in a teaching hospital emergency department could be influenced by modification of automated laboratory order sets.
  
  
  METHODS
  Prospective, using data from the same ED before and after intervention.
  
  
  METHODS
  A 58,000-visit public university hospital ED.
  
  
  METHODS
  Emergency physicians caring for adult patients admitted from the ED to the ward medical services.
  
  
  METHODS
  Beginning July 1, 1989, coagulation studies were deleted from the automated admission order sets used in the study hospital ED.
  
  
  RESULTS
  Patient charts were examined to assess the effect of coagulation study deletion on the frequency and appropriateness of coagulation test ordering. A tripling of the percentage of patients who did not receive coagulation parameter testing was noted (P less than .0001, chi 2). In no case were the tests omitted when a high-yield indication for their use was present. This resulted in an estimated reduction of $20,000 per year in patient charges.
  
  
  CONCLUSIONS
  Modification of ED "standard orders" can result in reduction of laboratory use without an adverse effect on patient care.
authors.affiliation: Department of Medicine, University of Virginia, Health Sciences Center, Charlottesville.
authors.forename: D S
authors.initials: DS
authors.lastname: Groopman
authors.forename: R D
authors.initials: RD
authors.lastname: Powers
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001780:Blood Coagulation Tests / Q000191:economics; D003363:Cost Control; D003955:Diagnostic Tests, Routine; D004636:Emergency Service, Hospital / Q000458:organization & administration*; D005260:Female; D006784:Hospitals, Teaching; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies