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B lood pressure (1 point) Age >= 65 years (1 point) Total Criteria Point Count: CURB-65 Score 0 to 1 Points: Low severity (risk of death <3 percent). Outpatient therapy is usually appropriate. 2 Points: Moderate severity (risk of death 9 percent). Hospitalization should be considered. 3 to 5 Points: High severity (risk of death 15 to 40 percent). Hospitalization is indicated, and the patient should be assessed for possible intensive care unit admission, especially if the CURB-65 score is 4 or 5. * Defined as an Abbreviated Mental Test Score <=8 or new disorientation to person, place, or time. ** Urea is blood urea nitrogen [BUN], expressed in mg/dL or serum urea concentration, expressed in mmol/L.

References Lim WS, van der Eerden MM, Laing R, et al. Defining community acquired pneumonia severity on presentation to hospital: an international derivation and validation study. Thorax . 2003 May;58(5):377-82. Lim WS, Baudouin SV, George RC, et al. BTS guidelines for the management of community acquired pneumonia in adults: update 2009. Thorax . 2009 Oct;64 Suppl 3:iii1-55. Qureshi KN, Hodkinson HM. Evaluation of a ten-question mental test in the institutionalized elderly. Age Ageing . 1974 Aug;3(3):152-7. Use of UpToDate is subject to the Subscription and License Agreement . Information on this page may not appear correctly if printed. Legal Notices and Disclaimer All information contained in and produced by the MedCalc 3000 system is provided for educational purposes only. This information should not be used for the diagnosis or treatment of any health problem or disease. THIS INFORMATION IS NOT INTENDED TO REPLACE CLINICAL JUDGMENT OR GUIDE INDIVIDUAL PATIENT CARE IN ANY MANNER. Click here for full notice and disclaimer. MedCalc 3000 is Copyright © 1998-2013 Foundation Internet Services