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A comparison of stability of chemical analytes in plasma from the BD Vacutainer (R) Barricor (TM) tube with mechanical separator versus tubes containing gel separator
Linköping University, Department of Clinical and Experimental Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Center for Diagnostics, Department of Clinical Chemistry.
Linköping University, Department of Clinical and Experimental Medicine, Division of Clinical Chemistry. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Center for Diagnostics, Department of Clinical Chemistry.
Linköping University, Department of Clinical and Experimental Medicine, Division of Cell Biology. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Center for Diagnostics, Department of Clinical Chemistry.
2019 (English)In: Journal of clinical laboratory analysis (Print), ISSN 0887-8013, E-ISSN 1098-2825, article id e23060Article in journal (Refereed) Epub ahead of print
Abstract [en]

Background: There is a need of prolonged stability of certain chemical analytes in lithium heparin tubes with separators. A new tube with a mechanical separator has recently been launched (Barricor (TM)), which according to the manufacturer may have these benefits. The aim of this study was to evaluate stability performance of this tube in comparison with plasma gel tubes under clinically realistic circumstances. Methods: Blood was collected in tubes containing lithium heparin with different separators; gel separator (Vacutainer (R) PST (TM), Becton Dickinson and Vacuette (R), Greiner bio-one) and mechanical separator (Vacutainer (R) Barricor (TM), Becton Dickinson). All tubes had an aspiration volume of 3 mL and were centrifuged at similar time and force. Tubes were transported manually or by car. Seven analytes from 122 patients were analyzed after 3 to 80 hours by Cobas c701 (Roche). Results The Barricor (TM) tube showed increased stability of phosphate and potassium and similar stability of aspartate aminotransferase, glucose, homocysteine, lactate dehydrogenase, and magnesium compared with gel tubes. Maximal allowable bias for phosphate was exceeded after 68 hours for Barricor (TM) tubes compared with 29 or 35 hours for gel tubes and for potassium after 40 hours for Barricor (TM) tubes vs 9 or 12 hours for gel tubes. Transportation did not affect stability. Hemolysis index was slightly lower in Barricor tubes than in gel tubes (P = .01). Conclusion Implementing the new Barricor (TM) tube will improve stability of potassium and phosphate in plasma. Blood sampling facilities far from the laboratory may benefit from using these tubes, thus diminishing preanalytical errors.

Place, publisher, year, edition, pages
WILEY , 2019. article id e23060
Keywords [en]
phosphate; plasma; potassium; separator; stability; tube
National Category
Medicinal Chemistry
Identifiers
URN: urn:nbn:se:liu:diva-161391DOI: 10.1002/jcla.23060ISI: 000490068000001PubMedID: 31605419OAI: oai:DiVA.org:liu-161391DiVA, id: diva2:1367470
Available from: 2019-11-04 Created: 2019-11-04 Last updated: 2019-11-04

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Department of Clinical and Experimental MedicineFaculty of Medicine and Health SciencesDepartment of Clinical ChemistryDivision of Clinical ChemistryDivision of Cell Biology
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