title: Effective screening tool to triage recovery rooms for possible tuberculosis patients undergoing bronchoscopy.
abstract: METHODS
  In 2005, tuberculin skin test conversions were observed following exposure to a patient with active pulmonary tuberculosis (TB) who recovered post-bronchoscopy in an open area at The Ottawa Hospital, Canada. In response, we implemented a screening tool to triage patients to  an airborne infection isolation (AII) room pre- and post-bronchoscopy.
  
  
  OBJECTIVE
  To evaluate the performance of the screening tool in detecting patients with culture-confirmed TB.
  
  
  METHODS
  All bronchoscopies performed between 1 March 2006 and 31 March 2010 were retrospectively reviewed.
  
  
  RESULTS
  Of 1839 patients included (55.3% of bronchoscopies), 210 screened positive, capturing 28 culture-confirmed TB cases. Three patients with positive TB cultures screened negative. The sensitivity of the screening tool was 90.3%; the negative predictive value was 99.8%. A positive screening result  was strongly predictive of a positive TB culture.
  
  
  CONCLUSIONS
  The screening tool is effective for identifying high-risk patients and triaging them to AII rooms. The pre-bronchoscopy screening tool is simple and inexpensive to implement and has the potential to reduce intra-institutional  spread of TB.
authors.affiliation: Department of Infectious Diseases, Ottawa Hospital, Ottawa, Ontario, Canada.
authors.forename: M
authors.initials: M
authors.lastname: Di Quinzio
authors.forename: G G
authors.initials: GG
authors.lastname: Alvarez
authors.forename: K
authors.initials: K
authors.lastname: Stockton
authors.forename: V R
authors.initials: VR
authors.lastname: Roth
mesh_terms: D000368:Aged; D001999:Bronchoscopy / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008403:Mass Screening / Q000379:methods; D008875:Middle Aged; D009864:Ontario; D010356:Patient Isolation / Q000379:methods*; D011237:Predictive Value of Tests; D011997:Recovery Room; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D014218:Triage / Q000379:methods*; D014376:Tuberculosis / Q000175:diagnosis* / Q000517:prevention & control / Q000635:transmission