Preserving whole blood in formalin extends the specimen stability period for manual cell counts for fish

© 2014 American Society for Veterinary Clinical Pathology.

Bibliographische Detailangaben
Veröffentlicht in:Veterinary clinical pathology. - 1975. - 43(2014), 4 vom: 01. Dez., Seite 613-20
1. Verfasser: Arnold, Jill E (VerfasserIn)
Weitere Verfasser: Matsche, Mark A, Rosemary, Kevin
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2014
Zugriff auf das übergeordnete Werk:Veterinary clinical pathology
Schlagworte:Journal Article Elasmobranch hematology hemocytometer teleost Fixatives Formaldehyde 1HG84L3525
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245 1 0 |a Preserving whole blood in formalin extends the specimen stability period for manual cell counts for fish 
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500 |a Date Completed 20.11.2015 
500 |a Date Revised 08.04.2022 
500 |a published: Print-Electronic 
500 |a Citation Status MEDLINE 
520 |a © 2014 American Society for Veterinary Clinical Pathology. 
520 |a BACKGROUND: Total blood cell counts for fish are challenging, especially due to cell fragility. Thrombocyte aggregation, cell distortion, and lysis can occur within hours of collection; therefore, hemocytometer counts may not be possible for large sample numbers. Preserving whole blood in formalin offers a simple way to extend the specimen stability period for cell counts 
520 |a OBJECTIVES: The objectives of this study were to characterize and compare the analytical performance of the Natt-Herrick method for fish blood cell counts using freshly collected and formalin-fixed specimens 
520 |a METHODS: Specimens from 11 elasmobranch species (n = 36) were compared for WBC counts. WBC, RBC, and thrombocyte counts from 50 striped bass, Morone saxatilis, were compared including 2 time points for the formalin-preserved cells (appr. 1-week and 1-month storage). Coefficient of variation (CV), bias, and total error (TEcalc ) were calculated. TEcalc was compared with allowable total error (TEa ) defined by the Clinical Laboratory Improvements Amendment (CLIA) for human blood cell counts 
520 |a RESULTS: The CV and TEcalc for fresh and fixed WBC and thrombocyte counts met CLIA limits. In both the fresh and preserved cells, the RBC CV and TEcalc were nearly 3 times higher than the TEa 
520 |a CONCLUSIONS: Preserving freshly collected blood in 10% formalin is a reliable method to maintain cell morphology for manual counts for up to 1 month post collection. This is especially useful for field studies, where laboratory access is limited. Further evaluation is needed to determine the clinical usefulness of the manual RBC count in fish 
650 4 |a Journal Article 
650 4 |a Elasmobranch 
650 4 |a hematology 
650 4 |a hemocytometer 
650 4 |a teleost 
650 7 |a Fixatives  |2 NLM 
650 7 |a Formaldehyde  |2 NLM 
650 7 |a 1HG84L3525  |2 NLM 
700 1 |a Matsche, Mark A  |e verfasserin  |4 aut 
700 1 |a Rosemary, Kevin  |e verfasserin  |4 aut 
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773 1 8 |g volume:43  |g year:2014  |g number:4  |g day:01  |g month:12  |g pages:613-20 
856 4 0 |u http://dx.doi.org/10.1111/vcp.12214  |3 Volltext 
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