 This project is designed to evaluate the clinical utility of a novel blood test, the Triage Stroke Panel, as an aid in the diagnosis and assessment of stroke. The Triage Stroke Panel test device, used with the Triage MeterPlus, is a rapid, point-of-care immunoassay. The test measures the concentration of various analytes present in EDTA-anticoagulated whole blood or plasma, specifically B-type natriuretic peptide BNP, fibrin degradation products containing D-Dimer, matrix metalloproteiase-9 MMP-9, and S-100B. The test utilizes a proprietary algorithm for the automatic calculation of a single Multimarker Index MMX result from the individual biomarker values. The MMX result is being evaluated for use as an aid in the assessment and diagnosis of stroke. 