FGF23
Back to Test Catalogue
Fibroblast Growth Factor 23 – Intact, Plasma
Test ID: FGF23UHN P
Test
Aliases/Synonyms
Method
Chemiluminescent
Platform
Diasorin Liaison XL
Report Includes
Intact Fibroblast Growth Factor 23
Specimens
Plasma
Clinical Utility
Fibroblast growth factor 23 or FGF 23 is a protein, which is encoded by the FGF23 gene in humans. FGF23 is a member of the fibroblast growth factor (FGF) family which is responsible for phosphate and vitamin D metabolism. The main function of FGF23 seems to be the regulation of phosphate concentration in plasma. FGF23 acts on the kidney, where it decreases the reabsorption and increases excretion of phosphate.
Test Version
21-Oct-2025
Specimen
Specimens
Plasma
Collection Containers
Lavender top (EDTA)
Sample Volume
1.0 mL
Collection & Handling
Handling Information
Centrifuge and separate as soon as possible. Store and send frozen.
Test Version
21-Oct-2025
Performance / Interpretation
Method
Chemiluminescent
Platform
Diasorin Liaison XL
Turnaround Time
1 month
Results
| Name | Units | Reference Range | Conversion Factor | |
|---|---|---|---|---|
| Fibroblast Growth Factor 23 | pg/mL |
|
||
|
FGF23 concentrations must be interpreted in conjunction with plasma phosphate measurements and urinary fractional excretion of phosphate. Do not interpret FGF23 concentrations as absolute evidence of the presence or the absence of tumor induced osteomalacia. Patients receiving burosumab should not be monitored using the IFGF 23 assay.
|
||||
Test Version
21-Oct-2025
Interface / Setup
HL7 Interface Codes
| Order Code | Result Codes | Units |
|---|---|---|
| FGF23UHN P | 64526INTACT FIBROBLAST GROWTH FACTOR 23 | pg/mL |
Test Version
21-Oct-2025