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Walk the Even Hospital Database by book and chapter — the raw source passages that ground Ask, DDx, and the rest.
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©2013 UpToDate ® Print Email Plasma BNP in the diagnosis of dyspnea Shown are the plasma B-type natriuretic peptide (BNP) concentrations in patients presenting with acute dyspnea who are diagnosed noncardiac causes without or with a history of left ventricular (LV) dysfunction, or heart failure (HF). Patients with a diagnosis of HF have significantly higher median values of plasma BNP compared to those without heart failure (675 versus 110 pg/mL). The boxes show the interquarile ranges, and the I bars represent the highest and lowest values. Data from Maisel AS, Krishnaswamy P, Nowak RM, et al. N Engl J Med 2002; 347:161.