... quality assurance surveyNatalie Chahine-Malus, Thomas Stewart, Stephen E Lapinsky, Ted Marras, David Dancey, Richard Leung and Sangeeta MehtaMount Sinai Hospital, Toronto, Ontario, CanadaCorrespondence: ... CXRs are beneficial to patient care. Brainsky et alobserved that 20% of routine CXRs performed in a medicalICU had ‘major important’ findings, and 8% prompted a change in management [4]. The majority ... werefairly accurate in determining the placement of subclavian orinternal jugular (IJ) vein pulmonary artery (PA) catheter intro-ducer sheaths, but the clinicians were not accurate for clinicaldetermination...