ISSN 2398-2942      

Blood biochemistry: ammonia

icanis

Synonym(s): NH3


Overview

  • Primarily absorbed from GI tract, especially colon. Lower levels from muscle metabolism.
  • Increased levels may be seen with impaired liver function or portosystemic shunt.
  • Used in investigation of hepatic encephalopathy Hepatic encephalopathy.

Sampling

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Tests

Availability

  • Contact commercial laboratory to confirm availability.
  • Available with some in-practice analysers.

Technique (intrinsic) limitations

  • Only significant in conjunction with other laboratory and clinical findings.

Technician (extrinsic) limitations

  • Specialized test.

Result Data

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Further Reading

Publications

Refereed papers

  • Recent references from VetMedResource and PubMed.
  • Sterczer A, Meyer H P, Boswijk H C & Rothuizen J (1999) Evaluation of ammonia measurements in dogs with two analysers in use in veterinary practiceVet Rec 144, 523-526.
  • Hitt M E & Jones B D (1986) Effects of storage, temperature and time on canine plasma ammonia concentrations. Am J Vet Res 47, 363-364.

Other sources of information

  • Ettinger S J & Feldman E C (2000) Eds. Textbook of Veterinary Internal Medicine. 5th edn. W B Saunders & Co, USA.
  • Kaneko J J, Harvey J W & Brass M L (1997) Eds. Clinical Biochemistry of Domestic Animals. 5th edn. Academic Press, USA.
  • Duncan J R, Prasse K W & Mahaffey E A (1994) Veterinary Laboratory Medicine. Clinical Pathology. 3rd edn. Iowa University Press, USA.

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