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Test Name:

PHOSPHORUS

Test Code:

2120172

Alias:

Inorganic phosphorus
LAB113
Phos
Phosphate
PO4

CPT Code(s):

84100

Preferred Specimen:

1.0 mL serum

Container:

SST (gold)

Lithium heparin (Lt green)

Minimum Volume:

0.3 mL serum
This volume does not allow for repeat testing.

Collection Instructions:

Allow specimen to completely clot (this can take up to 60 minutes). Centrifuge for 15 minutes. If the specimen is collected in a tube without a gel barrier, centrifuge and transfer the plasma into a properly labeled transfer tube within 2 hours of collection.

Transport Temperature:

Refrigerated

Stability:

Room Temperature: 8 hours
Refrigerated: 7 days

Schedule:

Set up Daily; Results in 24-48 hours

Method:

Timed rate

Clinical Significance:

Phosphorus measurements are used in the diagnosis and treatment of various disorders, including parathyroid gland and kidney diseases, and vitamin D imbalance.

Use:

Updated 07/05/2023

Reference Range Table

Result	Units	Gender	Age	Range
Phosphorus	mg/dL	Both	0 Day - 18 Year	4.0-7.0
Phosphorus	mg/dL	Both	18 Year - 999 Year	2.5-5.0

Health Lab Test Code Build Information

Excel | PDF

The CPT codes included in this publication are in accordance with Current Procedural Terminology, a publication of the American Medical Association. CPT codes are provided here for the convenience of our clients; however, correct coding often varies from one carrier to another, and HealthLab may bill specific carriers using codes other than those shown. Clients who bill for services should verify the code(s) with the applicable payor to confirm that their use is appropriate in each case.

Reference Range Table

Health Lab Test Code Build Information

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