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  • Title: Measurement of Elecsys NT-proBNP in serum, K2 EDTA and heparin plasma.
    Author: Lippi G, Salvagno GL, Montagnana M, Guidi GC.
    Journal: Clin Biochem; 2007 Jun; 40(9-10):747-8. PubMed ID: 17408609.
    Abstract:
    OBJECTIVE: There is controversial evidence on a matrix influence on the measurement of NT-proBNP. DESIGN AND METHODS: We compared results of Elecsys NT-proBNP measurement on serum, K2 EDTA plasma and lithium heparin plasma. RESULTS: Samples collected in K2 EDTA showed a marginally significant underestimation when compared to serum and heparin, whereas no significant difference was observed between serum and heparin plasma. CONCLUSIONS: Serum, heparin and K2 EDTA plasma may be suitable for NT-proBNP measurement.
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