ISSN 2398-2969      

Blood: gas analysis

Clapis

Synonym(s): Arterial blood gas ABG analysis


Overview

  • Complete information about pulmonary gas exchange, acid-base and electrolyte status of the patient is provided by measuring pH, PO2 (partial pressure of oxygen), PCO 2 (partial pressure of carbon dioxide), electrolytes and metabolites on arterial or venous blood.
  • Other parameters, such as HCO3 (bicarbonate), TCO2 (total CO2 ), SaO2 (arterial oxygen saturation), AnGap (anion gap) and BE (base excess) can also be calculated using specific formulas.
  • Useful monitoring tool to evaluate pulmonary function, blood oxygenation, ventilation and acid-base status of a conscious patient which may be suffering from disease, or of a patient which may be undergoing prolonged anesthesia.

Sampling

This article is available in full to registered subscribers

Sign up now to obtain ten tokens to view any ten Vetlexicon articles, images, sounds or videos, or Login

Tests

Methodologies

  • Different laboratory systems are available which consist of compact, chemistry analyzers capable of performing hematology, biochemistry and immunoassays, and of measuring electrolytes and blood gas parameters.

Availability

  • Readily available.

Validity

  • Studies are warranted to provide sufficient evidence that point-of-care analyzers produce reliable measurements comparable to reference laboratories, and in agreement with references provided by bench top analyzers.
  • Instrument-specific reference intervals are needed. It is advisable to use the same instrument when multiple assessments of a single patient are performed.

Validity

Sensitivity

  • Limited data available.

Specificity

  • Limited data available.

Technique (intrinsic) limitations

Technician (extrinsic) limitations

  • It is possible to transfer the sample to a lithium heparin tube before loading into the rotor.
  • Air bubbles or excessive pressure during sampling.
  • Erroneous sampling of venous rather than arterial blood.

Result Data

This article is available in full to registered subscribers

Sign up now to obtain ten tokens to view any ten Vetlexicon articles, images, sounds or videos, or Login

Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Eatwell K et al (2013) Use of arterial blood gas analysis as a superior method for evaluating respiratory function in pet rabbits. Vet Rec 173 (7), 166 PubMed.
  • Eatwell K, Mancinelli E, Headley J, Benato L, Shaw D J, Self I & Meredith A (2013) Comparison of invasive and non-invasive methods of respiratory monitoring in domestic rabbits (Oryctolagus cuniculus). Vet Rec [accepted for publication Apr 2013].
  • Ardiaca M, Bonvehi C & Montesinos A (2013) Point-of-care blood gas and electrolyte analysis in rabbits. Vet Clin Exot Anim 16, 175-195 PubMed.
  • Benato L, Chesnel M, Eatwell K & Meredith A (2013) Arterial blood gas parameters in pet rabbits anaesthetized using a combination of fentanyl-fluanisone-midazolam-isofluorane. JSAP May 10. doi: 10.1111/jsap.12081 PubMed.
  • Stanford M (2004) Practical use of capnography in exotic animal anaesthesia. Exotic DVM (3), 49-52.

Other sources of information

  • Adams A P (1989) Capnography and Pulse Oximetery. In: Recent Advances in Anaesthesia and Analgesia. Eds: Atkins R S & Adams A P. Churchill Livingston, UK. pp 155-175.

MEMBER BENEFIT

Can’t find what you’re looking for?

We have an ever growing content library on Vetlexicon so if you ever find we haven't covered something that you need please fill in the form below and let us know!

 
 
 
 

To show you are not a Bot please can you enter the number showing adjacent to this field

 Security code