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LETTERS TO THE EDITOR

Troponin I concentrations in heparinized plasma and serum differ when measured with the Advia Centaur TnI‐Ultra assay

Pages 513-515 | Received 11 Dec 2007, Accepted 29 Jan 2008, Published online: 08 Jul 2009

References

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  • ADVIA Centaur Assay Manual: TnI‐Ultra, 04744371 Rev. B, 2006‐8. Bayer HealthCare Diagnostics Division, Tarrytown, NY; 2006
  • Van de Kerkhof D. H., Peters B., Scharnhorst V. Performance of the Advia Centaur second generation troponin assay TnI‐Ultra compared to the first‐generation cTnI‐assay. Ann Clin Biochem 2008; 45: 316–7
  • Pagani F., Stefini F., Chapelle J‐P., Lefevre G., Graïne H., Luthe H., et al. Multicenter evaluation of analytical performance of the Liaison troponin I assay. Clin Biochem 2004; 37: 750–7
  • Gerhardt W., Nordin G., Herbert A‐K., Burzell B. L., Isaksson A., Gustavsson E., et al. Troponin T and I assays show decreased concentrations in heparin plasma compared with serum: lower recoveries in early than in late phases of myocardial injury. Clin Chem 2000; 46: 817–21
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  • Stiegler H., Fischer Y., Vazquez‐Jiminez J. F., Graf J., Filzmaier K., Fausetn B., et al. Lower cardiac troponin T and I results in heparin‐plasma than in serum. Clin Chem 2000; 46: 1338–44
  • Katrukha A., Bereznikova A., Filatov V., Esakova T. Biochemical factors influencing measurement of cardiac troponin I in serum. Clin Chem Lab Med 1999; 37: 1091–5

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