PO4 (Phosphate, anorganic)

serum or heparin plasma 0.5 ml

photometry

1 day

• Increased values are found physiologically in young animals. Due to high intracellular concentrations, hyperphosphataemia is simulated by haemolysis/in haemolytic samples.
• The most common causes of pathologically elevated serum levels are kidney diseases and hyperthyreosis in cats.
• Endocrinopathies may cause hypophosphataemia.
• Reptiles: The Ca/P ratio should be approximately 2:1.
• Cattle: Hypophosphataemia can lead to chronic rumen acidosis, impaired digestion and recumbency. Hyperphosphataemia causes calcinosis.