title: [Incidence of biological tests requested outside of written medical prescriptions in digestive surgical intensive care unit].
abstract: OBJECTIVE
  Realization of biological tests in intensive care unit requires a written medical prescription. Requests of biological tests outside written medical prescription are sometimes observed. The aim of the survey was to evaluate their incidence and the reasons of these practices.
  
  
  METHODS
  The study was realized on a 14 days-period in a 8 beds intensive care unit of digestive surgery, in real situation and anyone was informed of the study. Nineteen patients were enrolled during the period of the study.
  
  
  RESULTS
  A request of biological tests outside written medical prescription was found in 78% of requests of tests (89/114). The incidence of requests of biological tests outside written medical prescription was 27%. Several reasons could explain these practices.
  
  
  CONCLUSIONS
  This study confirms that there is a high frequency of requests of biological tests outside written medical prescription and that several reasons could explain these practices in intensive care unit.
authors.affiliation: Service d'anesthésie-réanimation-urgences-Smur, APHP, CHU Beaujon, 100, boulevard du Général-Leclerc, 92100 Clichy, France.
authors.forename: S
authors.initials: S
authors.lastname: Perbet
authors.forename: F
authors.initials: F
authors.lastname: Lagneau
authors.forename: A
authors.initials: A
authors.lastname: Wernet
authors.forename: D
authors.initials: D
authors.lastname: Delefosse
authors.forename: J
authors.initials: J
authors.lastname: Belghiti
authors.forename: J
authors.initials: J
authors.lastname: Marty
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019963:Clinical Chemistry Tests / Q000706:statistics & numerical data*; D003422:Critical Care; D013505:Digestive System Surgical Procedures; D005260:Female; D006801:Humans; D007362:Intensive Care Units; D008297:Male; D008875:Middle Aged