Document Detail

Effects of syringe type and storage conditions on results of equine blood gas and acid-base analysis.
MedLine Citation:
PMID:  22738049     Owner:  NLM     Status:  In-Data-Review    
Objective-To determine effects of syringe type and storage conditions on blood gas and acid-base values for equine blood samples. Sample-Blood samples obtained from 8 healthy horses. Procedures-Heparinized jugular venous blood was equilibrated via a tonometer at 37°C with 12% O(2) and 5% CO(2). Aliquots (3 mL) of tonometer-equilibrated blood were collected in random order by use of a glass syringe (GS), general-purpose polypropylene syringe (GPPS), or polypropylene syringe designed for blood gas analysis (PSBGA) and stored in ice water (0°C) or at room temperature (22°C) for 0, 5, 15, 30, 60, or 120 minutes. Blood pH was measured, and blood gas analysis was performed; data were analyzed by use of multivariable regression analysis. Results-Blood Po(2) remained constant for the reference method (GS stored at 0°C) but decreased linearly at a rate of 7.3 mm Hg/h when stored in a GS at 22°C. In contrast, Po(2) increased when blood was stored at 0°C in a GPPS and PSBGA or at 22°C in a GPPS; however, Po(2) did not change when blood was stored at 22°C in a PSBGA. Calculated values for plasma concentration of HCO(3) and total CO(2) concentration remained constant in the 3 syringe types when blood was stored at 22°C for 2 hours but increased when blood was stored in a GS or GPPS at 0°C. Conclusions and Clinical Relevance-Blood samples for blood gas and acid-base analysis should be collected into a GS and stored at 0°C or collected into a PSBGA and stored at room temperature.
Sarah A Kennedy; Peter D Constable; Ismail Sen; Laurent Couëtil
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American journal of veterinary research     Volume:  73     ISSN:  1943-5681     ISO Abbreviation:  Am. J. Vet. Res.     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-06-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0375011     Medline TA:  Am J Vet Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  979-87     Citation Subset:  IM    
Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907.
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