Dynamic viscoelastic coagulometry of blood obtained from healthy chickens
| Autor: | Cassandra Rodenbaugh, Mark E. Payton, Ian Kanda, Shane D Lyon, LaRinda A Holland, Andrew S Hanzlicek, João Brandão, Theresa E. Rizzi |
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| Rok vydání: | 2019 |
| Předmět: |
Chromatography
Platelet Function Tests General Veterinary Chemistry Sodium chemistry.chemical_element General Medicine Sodium Citrate Viscoelasticity Thromboplastin chemistry.chemical_compound Blood Preservation Sodium citrate Animals Feasibility Studies Coagulation (water treatment) Female Blood Coagulation Tests Kaolin Blood Coagulation Chickens Whole blood |
| Zdroj: | American Journal of Veterinary Research. 80:441-448 |
| ISSN: | 0002-9645 |
| DOI: | 10.2460/ajvr.80.5.441 |
| Popis: | OBJECTIVE To assess feasibility of the use of a dynamic viscoelastic coagulometer on chicken blood and compare coagulation variables for fresh whole blood and sodium citrate–preserved whole blood as well as effects of 3 coagulation activators on blood from chickens. SAMPLE Blood samples from 30 hens. PROCEDURES Chickens were allowed to rest undisturbed for 1 hour. A blood sample was collected from an ulnar vein; 1.4 mL was analyzed immediately, and 1.8 mL was mixed with sodium citrate and subsequently recalcified and analyzed. A separate coagulation activator (glass beads, kaolin clay, or tissue factor) was in each of the 2 channels of the analyzer. Chickens were allowed a 1-hour rest period, and another blood sample was collected from the contralateral ulnar vein; it was processed in the same manner as for the first sample, except both channels of the analyzer contained the same coagulation activator. RESULTS Compared with fresh samples, citrated samples had higher values for activated clotting time and platelet function and lower clotting rates. Intra-assay coefficients of variation of coagulation profiles for citrated samples were markedly greater than the limit of 10%, whereas values for fresh samples were close to or < 10%. CONCLUSIONS AND CLINICAL RELEVANCE Results suggested that use of a dynamic viscoelastic coagulometer on chicken blood was feasible and that analysis of fresh whole blood from healthy chickens provided results with less variability than did analysis of citrated blood. Samples preserved with sodium citrate were associated with significant relative hypocoagulability, compared with results for fresh blood. |
| Databáze: | OpenAIRE |
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