Analyze Diet
Veterinary medicine and science2017; 3(4); 263-269; doi: 10.1002/vms3.82

The effect of sodium bicarbonate and validation of beckman coulter AU680 analyzers for measuring total carbon dioxide (TCO2) concentrations in horse serum.

Abstract: This study evaluated the usage of Beckman Coulter AU680 analyzers for measurement of TCO in horse serum, and the effect of sodium bicarbonate administrations on serum TCO levels in resting horses. Treatment of horses with sodium bicarbonate did not result in any adverse events. Mean TCO concentration was significantly higher from 1 to 8 h in the sodium bicarbonate-treated horses compared to the untreated controls. Within an hour, administration of sodium bicarbonate increased the TCO level from 31.5 ± -2.5 (SD) to 34.0 ± 2.65 (SD) mmol/L and at 2-8 h post-administration, the TCO level was above the 36 mmol/L cut-off level. In all quality control analysis of Australian standard by Beckman Coulter AU680 analyzer, the instrument slightly over estimated the TCO level but the values were in close agreement with mean TCO level being 38.03 with ± 0.87 mmol/L (SD). Expanded uncertainty was calculated using different levels of confidence interval. Based on 99.5% confidence interval using 0.805% expanded uncertainty using mean measured concentration of 38.05 mmol/L, it was estimated that any race samples TCO level higher than 38.5 mmol/L will be indicative of sodium bicarbonate administration using Beckman Coulter AU680 analyzer in Louisiana.
Publication Date: 2017-10-25 PubMed ID: 29152319PubMed Central: PMC5677778DOI: 10.1002/vms3.82Google Scholar: Lookup
The Equine Research Bank provides access to a large database of publicly available scientific literature. Inclusion in the Research Bank does not imply endorsement of study methods or findings by Mad Barn.
  • Journal Article

Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

This research investigated the use of Beckman Coulter AU680 analyzers for accurately measuring the concentration of total carbon dioxide (TCO2) in horse serum, and how administering sodium bicarbonate affects these levels.

Methodology and Objective

  • The research aimed to understand the effectiveness and accuracy of Beckman Coulter AU680 analyzers in measuring the concentration of TCO2 in horse serum.
  • Simultaneously, the study also aimed to examine the effects of sodium bicarbonate administration on TCO2 levels in horses’ blood serum, primarily focused on resting horses. The duration after administering that these effects would take place was also considered.

Administration of Sodium Bicarbonate

  • In this study, sodium bicarbonate was administered to horses and it was observed that there were no adverse events following this injection.
  • The concentration of TCO2 was found to be significantly higher from 1 to 8 hours in the horses treated with sodium bicarbonate, compared to those that were untreated.
  • Findings showed that within an hour of administration, the levels of TCO2 increased from an average of 31.5 mmol/L to 34.0 mmol/L. From 2-8 hours following administration, TCO2 level exceeded the 36 mmol/L cut-off level indicative of sodium bicarbonate administration.

Quality Control Analysis using Beckman Coulter AU680 Analyzers

  • An important part of the study focused on the use of Beckman Coulter AU680 analyzers for measuring TCO2 concentration in horse serum.
  • The analyzers, while slightly overestimating the TCO2 levels, still provided values that were in close agreement with the average TCO2 levels – around 38.03 mmol/L. Thus, it was concluded that the analyzer was effective for this purpose.
  • The expanded uncertainty was calculated using different levels of confidence intervals. It was deduced that based on 99.5% confidence interval and 0.805% expanded uncertainty, any race samples with TCO2 levels higher than 38.5 mmol/L would indicate sodium bicarbonate administration.

General Conclusions

  • The study provided valuable insight into the administration of sodium bicarbonate and its effects on TCO2 levels in horse serum, which can be relevant in equine sports for detecting potential doping.
  • Further, it was concluded that Beckman Coulter AU680 analyzers can effectively measure these levels, albeit slightly overestimating them. This tool can be a reliable resource for monitoring these changes in a race environment.

Cite This Article

APA
Dirikolu L, Waller P, Waguespack ML, Andrews FM, Keowen ML, Gaunt SD. (2017). The effect of sodium bicarbonate and validation of beckman coulter AU680 analyzers for measuring total carbon dioxide (TCO2) concentrations in horse serum. Vet Med Sci, 3(4), 263-269. https://doi.org/10.1002/vms3.82

Publication

ISSN: 2053-1095
NlmUniqueID: 101678837
Country: England
Language: English
Volume: 3
Issue: 4
Pages: 263-269

Researcher Affiliations

Dirikolu, Levent
  • Equine Medication Surveillance LaboratoryDepartment of Comparative Biomedical SciencesSchool of Veterinary MedicineLouisiana State UniversitySkip Bertman DriveBaton RougeLouisiana70803.
Waller, Pamela
  • Equine Medication Surveillance LaboratoryDepartment of Comparative Biomedical SciencesSchool of Veterinary MedicineLouisiana State UniversitySkip Bertman DriveBaton RougeLouisiana70803.
Waguespack, Mona Landry
  • Equine Medication Surveillance LaboratoryDepartment of Comparative Biomedical SciencesSchool of Veterinary MedicineLouisiana State UniversitySkip Bertman DriveBaton RougeLouisiana70803.
Andrews, Frank Michael
  • Equine Health Studies ProgramVeterinary Clinical SciencesLouisiana State University1843 Veterinary Teaching HospitalBaton RougeLouisiana70803.
Keowen, Michael Layne
  • Equine Health Studies ProgramVeterinary Clinical SciencesLouisiana State University1843 Veterinary Teaching HospitalBaton RougeLouisiana70803.
Gaunt, Stephen David
  • Louisiana Animal Disease Diagnostic LaboratoryDepartment of Pathobiological SciencesSchool of Veterinary MedicineLouisiana State UniversitySkip Bertman Drive Baton RougeLouisiana70803.

References

This article includes 19 references
  1. Auer DE, Skelton KV, Tay S, Baldock FC. Detection of bicarbonate administration (milkshake) in standardbred horses.. Aust Vet J 1993 Sep;70(9):336-40.
  2. Beard LA, Hinchcliff KW. Effect of NaCl and NaHCO3 on serum ionised calcium and blood gas status during sprinting.. Equine Vet J Suppl 2002 Sep;(34):519-23.
  3. Carlson GP, Jones JH. Effects of frusemide on electrolyte and acid-base balance during exercise.. Equine Vet J Suppl 1999 Jul;(30):370-4.
  4. Cohen ND, Stanley SD, Arthur RM, Wang N. Factors influencing pre-race serum concentration of total carbon dioxide in Thoroughbred horses racing in California.. Equine Vet J 2006 Nov;38(6):543-8.
    pubmed: 17124845doi: 10.2746/042516406x156479google scholar: lookup
  5. Freestone JF, Carlson GP, Harrold DR, Church G. Influence of furosemide treatment on fluid and electrolyte balance in horses.. Am J Vet Res 1988 Nov;49(11):1899-902.
    pubmed: 3247914
  6. Freestone JF, Carlson GP, Harrold DR, Church G. Furosemide and sodium bicarbonate-induced alkalosis in the horse and response to oral KCl or NaCl therapy.. Am J Vet Res 1989 Aug;50(8):1334-9.
    pubmed: 2551202
  7. Frey LP, Kline KH, Foreman JH, Brady AH, Cooper SR. Effects of warming‐up, racing and sodium bicarbonate in Standardbred horses. Equine Veterinary Journal 18, 310–313.
  8. nGill A.M.. (2004). Sodium bicarbonate loading could delay onset of fatigue and mask use or detection of drugs, originally published in Thoroughbred Times. Available at: http://www.equiforce.com/bicarbonate-loading-in-horses.aspx (Accessed 12 October 2016)
  9. Harkins JD, Kamerling SG. Effects of induced alkalosis on performance in thoroughbreds during a 1,600-m race.. Equine Vet J 1992 Mar;24(2):94-8.
  10. Heffron B, Benoit M, Bishop J, Costello S, Hurt L, Simpson L, Taddei L, Kline K, Negrusz A. Equine total carbon dioxide testing in Illinois in 2012.. J Anal Toxicol 2014 Oct;38(8):536-40.
    pubmed: 25217543doi: 10.1093/jat/bku095google scholar: lookup
  11. Kline K, Fitzpatrick D, Taddei L, Sukta A. Effect of dose of furosemide on plasma TCO2 changes in Standardbred horses. Journal of Equine Veterinary Science 26, 317–321.
  12. Lloyd DR, Rose RJ. Effects of sodium bicarbonate on fluid, electrolyte and acid-base balance in racehorses.. Br Vet J 1995 Sep-Oct;151(5):523-45.
    pubmed: 8556313doi: 10.1016/s0007-1935(05)80024-7google scholar: lookup
  13. Lloyd DR, Rose RJ, Reilly P. Milkshakes. Australian Equine Veterinarian 10, 119.
  14. Lloyd DR, Evans DL, Hodgson DR, Suann CJ, Rose RJ. Effects of sodium bicarbonate on cardiorespiratory measurements and exercise capacity in thoroughbred horses.. Equine Vet J 1993 Mar;25(2):125-9.
  15. Manohar M, Goetz TE, Hassan AS. NaHCO(3) does not affect arterial O(2) tension but attenuates desaturation of hemoglobin in maximally exercising Thoroughbreds.. J Appl Physiol (1985) 2004 Apr;96(4):1349-56.
  16. Sutton GJ, Cawley A, Murphy C, Lau ML, Hibbert DB. Factors influencing total carbon dioxide concentrations in plasma of thoroughbred and standardbred racehorses.. Drug Test Anal 2014 Sep;6(9):936-43.
    pubmed: 24574021doi: 10.1002/dta.1600google scholar: lookup
  17. Tinkler SH, Couëtil LL, Constable PD. Effect of sample handling and storage time on the stability of total CO2 in equine plasma.. Equine Vet J Suppl 2012 Dec;(43):57-61.
  18. Waller AP, Pearson W, Lindinger MI. Factors contributing to plasma TCO2 and acid-base state in Ontario Standardbred racehorses.. Equine Vet J Suppl 2010 Nov;(38):592-600.
  19. Wilkes D, Gledhill N, Smyth R. Effect of acute induced metabolic alkalosis on 800-m racing time.. Med Sci Sports Exerc 1983;15(4):277-80.

Citations

This article has been cited 1 times.
  1. Ding X, Li M, Peng C, Wang Z, Qian S, Ma Y, Fang T, Feng S, Li Y, Wang X, Li J, Wu J. Uric acid transporters BCRP and MRP4 involved in chickens uric acid excretion. BMC Vet Res 2019 May 30;15(1):180.
    doi: 10.1186/s12917-019-1886-9pubmed: 31146764google scholar: lookup