Calcium (ocular fluids)

Interpretation of Calcium Concentration in Ocular Fluids of Cattle and Sheep
Values of <1.00 mmol/l are suggestive of terminal hypocalcaemia.

Ocular fluid calcium is in equilibrium with ionised calcium, not total plasma calcium; consequently ocular fluids usually contain approximately 50% less calcium than blood levels. Aqueous humour may more accurately reflect recent rapid changes in serum calcium than vitreous humour. Ocular fluid biochemistry should not be used as a diagnostic criterion but as an adjunct to other diagnostic information regarding the animal sampled. Results must be considered in relation to clinical history, gross pathology and estimated time of death.
Reference: Edwards, Foster and Livesey, In Practice, Volume 31, Issue 1, 2009

Price: £9.12
Species: Cattle, Sheep, Goats, Pigs
Disease/presentation: Metabolic disease
Test type: Biochemistry
Sample type(s): Aqueous humour, Vitreous humour