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Fibroblast Growth Factor 23

Order Code
004380
CPT
83520
Test Details
Synonyms

FGF-23 C-Terminal Fragment

TAT

14 days

Methodology

Enzyme-linked immunosorbent assay (ELISA)14 This test is a second-generation C-terminal assay that measures both the intact FGF-23 and its C-terminal fragments.14

Performing Location

Accredited Laboratory Partner

Testing Frequency

Contact Technical Support

Test Overview

Regulates phosphate and vitamin D metabolism. Elevated in tumor-induced osteomalacia.

Specimen Type

Plasma

Volume

1 mL

Specimen Container

Lavender-top (EDTA) tube

Patient Preparation

No special preparation is required for this test. You may eat, drink, and take your medications as normal, unless instructed otherwise by your healthcare provider.

Collection

This test does not require any special collection or pre-analytical handling. Follow routine specimen collection protocols.

Specimen Stability
Temperature Period
Refrigerated 14 days
Frozen 14 days
Order Code
004380
CPT
83520
Test Details
Synonyms

FGF-23 C-Terminal Fragment

TAT

14 days

Methodology

Enzyme-linked immunosorbent assay (ELISA)14 This test is a second-generation C-terminal assay that measures both the intact FGF-23 and its C-terminal fragments.14

Performing Location

Accredited Laboratory Partner

Testing Frequency

Contact Technical Support

Test Overview

Regulates phosphate and vitamin D metabolism. Elevated in tumor-induced osteomalacia.

Specimen Type

Plasma

Volume

1 mL

Specimen Container

Lavender-top (EDTA) tube

Patient Preparation

No special preparation is required for this test. You may eat, drink, and take your medications as normal, unless instructed otherwise by your healthcare provider.

Collection

This test does not require any special collection or pre-analytical handling. Follow routine specimen collection protocols.

Specimen Stability
Temperature Period
Refrigerated 14 days
Frozen 14 days