Imperial Collage Healthcare

Phosphate (blood)


Lab Code : PHOS


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 Required
SST (gold top)


Sample Volume
0.5 mL


Turnaround Time
1 day


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