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Rapid serum tube technology overcomes problems associated with use of anticoagulants.
Biochem Med (Zagreb) 2019; 29(3):030706BM

Abstract

Introduction

Failure to obtain complete blood clotting in serum is a common laboratory problem. Our aim was to determine whether snake proth-rombin activators are effective in clotting blood and producing quality serum for analyte measurement in anticoagulated patients.

Materials and methods

Whole blood clotting was studied in a total of 64 blood samples (41 controls, 20 Warfarin patients, 3 anticoagulated patients using snake venom prothrombin activator (OsPA)) with plain tubes. Coagulation was analysed using a visual assay, Hyland-Clotek and thromboelastography. Healthy control blood was spiked with a range of anticoagulants to determine the effectiveness of OsPa-induced clotting. A paired analysis of a Dabigatran patient and a control investigated the effectiveness of the OsPA clotting tubes. Biochemical analytes (N = 31) were determined for 7 samples on chemistry and immunoassay analysers and compared with commercial tubes.

Results

Snake venom prothrombin activators efficiently coagulated blood and plasma spiked with heparin and commonly used anticoagulants. Clotting was observed in the presence of anticoagulants whereas no clotting was observed in BDRST tubes containing 3 U/mL of heparin. Snake venom prothrombin activator enhanced heparinised blood clotting by shortening substantially the clotting time and improving significantly the strength of the clot. Comparison of 31 analytes from the blood of five healthy and two anticoagulated participants gave very good agreement between the analyte concentrations determined.

Conclusions

Our results showed that the snake venom prothrombin activators OsPA and PtPA efficiently coagulated recalcified and fresh bloods with or without added anticoagulants. These procoagulants produced high quality serum for accurate analyte measurement.

Authors+Show Affiliations

Faculty of Medicine, University of Queensland, Translational Research Institute, Brisbane, Australia.Chemical Pathology, Princess Alexandra Hospital, Brisbane, Australia.School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, Australia.Faculty of Medicine, University of Queensland, Translational Research Institute, Brisbane, Australia.Q-Sera Pty Ltd, Level 9,31 Queen St, Melbourne, Australia.Faculty of Medicine, University of Queensland, Translational Research Institute, Brisbane, Australia.Faculty of Medicine, University of Queensland, Translational Research Institute, Brisbane, Australia.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31624459

Citation

Zhao, Kong-Nan, et al. "Rapid Serum Tube Technology Overcomes Problems Associated With Use of Anticoagulants." Biochemia Medica, vol. 29, no. 3, 2019, p. 030706.
Zhao KN, Dimeski G, de Jersey J, et al. Rapid serum tube technology overcomes problems associated with use of anticoagulants. Biochem Med (Zagreb). 2019;29(3):030706.
Zhao, K. N., Dimeski, G., de Jersey, J., Johnson, L. A., Grant, M., Masci, P. P., & Lavin, M. F. (2019). Rapid serum tube technology overcomes problems associated with use of anticoagulants. Biochemia Medica, 29(3), p. 030706. doi:10.11613/BM.2019.030706.
Zhao KN, et al. Rapid Serum Tube Technology Overcomes Problems Associated With Use of Anticoagulants. Biochem Med (Zagreb). 2019 Oct 15;29(3):030706. PubMed PMID: 31624459.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Rapid serum tube technology overcomes problems associated with use of anticoagulants. AU - Zhao,Kong-Nan, AU - Dimeski,Goce, AU - de Jersey,John, AU - Johnson,Lambro A, AU - Grant,Michael, AU - Masci,Paul P, AU - Lavin,Martin F, PY - 2018/11/05/received PY - 2019/06/26/accepted PY - 2019/10/19/entrez PY - 2019/10/19/pubmed PY - 2019/11/9/medline KW - analytes KW - anticoagulants KW - prothrombin activators KW - serum SP - 030706 EP - 030706 JF - Biochemia medica JO - Biochem Med (Zagreb) VL - 29 IS - 3 N2 - Introduction: Failure to obtain complete blood clotting in serum is a common laboratory problem. Our aim was to determine whether snake proth-rombin activators are effective in clotting blood and producing quality serum for analyte measurement in anticoagulated patients. Materials and methods: Whole blood clotting was studied in a total of 64 blood samples (41 controls, 20 Warfarin patients, 3 anticoagulated patients using snake venom prothrombin activator (OsPA)) with plain tubes. Coagulation was analysed using a visual assay, Hyland-Clotek and thromboelastography. Healthy control blood was spiked with a range of anticoagulants to determine the effectiveness of OsPa-induced clotting. A paired analysis of a Dabigatran patient and a control investigated the effectiveness of the OsPA clotting tubes. Biochemical analytes (N = 31) were determined for 7 samples on chemistry and immunoassay analysers and compared with commercial tubes. Results: Snake venom prothrombin activators efficiently coagulated blood and plasma spiked with heparin and commonly used anticoagulants. Clotting was observed in the presence of anticoagulants whereas no clotting was observed in BDRST tubes containing 3 U/mL of heparin. Snake venom prothrombin activator enhanced heparinised blood clotting by shortening substantially the clotting time and improving significantly the strength of the clot. Comparison of 31 analytes from the blood of five healthy and two anticoagulated participants gave very good agreement between the analyte concentrations determined. Conclusions: Our results showed that the snake venom prothrombin activators OsPA and PtPA efficiently coagulated recalcified and fresh bloods with or without added anticoagulants. These procoagulants produced high quality serum for accurate analyte measurement. SN - 1846-7482 UR - https://www.unboundmedicine.com/medline/citation/31624459/Rapid_serum_tube_technology_overcomes_problems_associated_with_use_of_anticoagulants L2 - http://www.biochemia-medica.com/2019/29/030706 DB - PRIME DP - Unbound Medicine ER -