Days Set Up
Daily, 24 hours
Analytic Time

2 hours

MiChart Code
Phosphorus
Soft Order Code
PHOS

Test Updated:

Synonyms

Inorganic Phosphate
PHOS
Phosphorus
PHOSPHORUS LEVEL

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Test Overview

Test Methodology

Phosphomolybdate UV Endpoint

Test Usage

Evaluation of phosphorus metabolism, calcium/phosphorus balance. Abnormal serum phosphate levels are commonly seen in kidney, bone and parathyroid diseases.

Reference Range

<1 year: 4.8 - 7.0 mg/dL, 1-4 years: 3.8 - 5.8 mg/dL, 5-11 years: 3.5 - 5.6 mg/dL, 12-150 years: 2.7 - 4.6 mg/dL.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Specimen Requirements

Collection Offsite

Collect specimen in an SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate.

Yellow Top Tube
Normal Volume
0.5 mL serum
Minimum Volume
0.25 mL serum

Billing Information

CPT Code
84100
Pro Fee Code
 
LOINC
2777-1

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Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.