Abstracts in Urgent Care: September, 2012

Age-based cutoffs for D-dimer levels Key point: Age-based cutoffs for D-dimer levels can more accurately rule out deep venous thrombosis than the conventional cutoff level. Citation: Schouten HJ, Koek HL, Oudega R, et al. BMJ. 2012; 344: e2985. Researchers measured D-dimer values in some 650 patients suspected of having deep venous thrombosis but who had a low clinical probability according to their Wells score. Compression ultrasonography was used to confirm the diagnosis. Various cutoff levels …

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