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Also known as: P; PO4; Phosphate
Formal name: Inorganic Phosphate

At a Glance

Why Get Tested?

To evaluate the level of phosphorus in your blood and to aid in the diagnosis of conditions known to cause abnormally high or low levels of phosphorus

When to Get Tested?

In follow up to an abnormal calcium level; when you have a kidney disorder or uncontrolled diabetes; when you are taking calcium or phosphate supplements

Sample Required?

A blood sample drawn from a vein in your arm or sometimes a timed urine collection (usually a 24-hour sample)

Test Preparation Needed?

Overnight fasting may be required for a blood sample; follow any instructions that you are given.