ISSN 2398-2950      

Blood biochemistry: total calcium

ffelis
Contributor(s):

Kathleen P Freeman

Synonym(s): Ca


Overview

  • Major constituent of bones and teeth.
  • Physiological functions include nerve transmission and blood clotting.
  • Regulated by parathyroid hormone, calcitonin and vitamin D.
  • Important marker of bone disease and parathyroid function.
  • Comprizes three fractions: ionized (50%, biologically active), protein bound (40%) and chelated to anions (10%).

Sampling

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Tests

Methodologies

  • Colorimetric assay most commonly used.
  • May be measured directly by atomic absorption.
  • Measured as total calcium.

Availability

  • Routine availability.

Technique (intrinsic) limitations

  • Test results only significant in conjunction with other laboratory results and clinical findings.

Result Data

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Further Reading

Publications

Refereed papers

Other sources of information

  • Ettinger S J & Feldman E C (2000) Eds. Textbook of Veterinary Internal Medicine. 5th edn. W B Saunders & Co, USA. ISBN: 0 7216 67953.
  • Kaneko J J, Harvey J W & Brass M L (1997) Eds. Clinical Biochemistry of Domestic Animals. 5th edn. Academic Press, USA. ISBN: 0 1239 6305 2.
  • 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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