Phosphate in plasma, serum (P)

Phosphate levels are measured when there is a suspicion of imbalances in the phosphate metabolism, such as in kidney failure, liver disease, tumor lysis syndrome, calcium imbalances, alcoholism, nutrition imbalances, vitamin D deficiency, large burns, ketoacidosis, respiratory alkalosis, malabsorption, chronic diarrhoea, and unexplained fatigue conditions.

Phosphate in plasma/serumwomen0,85 – 1,50 mmol/L
Men 18-49 years0,75 – 1,65 mmol/L
Men >49 years0,75 – 1,35 mmol/L

Children have higher levels than adults. A high intake of carbohydrate reduces phosphate. The concentration at night is 10-30 % higher than in the morning. The most common cause of elevated levels is kidney failure. Hemolysis of the blood test can lead to falsely elevated concentrations.

Read more about phosphate in The handbook on medical biochemistry.