• Stephen Malnick, Gabriel Duek, Nick Beilinson, Vladimir Neogolani, Alon Basevitz, Marina Somin, Joel Cohen, Miriam Katz, and Ami Schattner.
• Department of Medicine and Radiology Institute, Kaplan Medical Center, Rehovot, affiliated with Hebrew University-Hadassah Medical School, Jerusalem, Israel. stevash@trendline.co.il
• Isr Med Assoc J. 2010 Jun 1;12(6):357-61.

BackgroundIn many hospitals a routine chest X-ray is performed on admission. There are, however, scant data regarding its usefulness in contemporary patient populations.MethodsWe studied consecutive patients admitted during a 2 month period to a single department of medicine, where hospital policy mandates performing an admission CXR. Two senior clinicians not involved in the care of these patients assessed the discharge summaries for a clinical indication to perform CXR on admission, as well as its contribution to patient management (major positive, major negative, minor positive, or no contribution).ResultsThere were 675 patients whose mean age was 64.5 +/- 17.2 years. In 19.6% (130 cases) CXR was not performed. Of the 545 CXRs done, 260 (48%) were normal. In only 128 (23.5%) did the admission CXR make a major positive contribution to diagnosis or treatment. In 61 (11.2%) it provided a minor positive contribution and in 153 (28.1%) a major negative contribution. In 184 patients (33.8%) the CXR did not affect either diagnosis or management. It made a major positive contribution to management in patients for whom there was an indication for performing the X-ray (odds ratio 10.3, P < 0.0005) and in those with a relevant finding on physical examination (OR 1.63, P = 0.110). For the 329 patients who had neither a clinical indication for performing a CXR nor an abnormal chest examination the admission CXR contributed to patient management in only 12 cases (3.6%).ConclusionsA routine admission CXR has a significant impact on patient management only in those patients in whom there are relevant findings on physical examination or a clear clinical indication for performing the test. There is no need to routinely order CXR on admission to hospital.

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