Phosphate in plasma/serum women 0,85 – 1,50 mmol/L Men 18-49 years 0,75 – 1,65 mmol/L
Men >49 years 0,75 – 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.