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North West London Pathology > Tests > Phosphate (blood)

Phosphate (blood)

Category Biochemistry
Test background

In primary hyperparathyroidism, serum phosphorus levels are abnormally low as a result of decreased renal tubular phosphorus reabsorption. This contrasts with secondary hyperparathyroidism, in which serum phosphorus levels are generally elevated because of renal disease.
Clinical Indications

Suspected disorders of bone
Diagnosis and monitoring of renal failure
Reference range
Adult: 0.8-1.5 mmol/L
Up to 1 month: 1.25-2.6 mmol/L
1-12 months: 1.3-2.4 mmol/L
1-16 years:  0.9-1.8 mmol/L

 
Sample & container required SST (gold top)
Sample volume 0.5 mL
Turnaround time 1 day