Fibroblast growth factor 23 (FGF23) C-terminal
Fibroblast growth factor is involved in phosphate metabolism. Over-expression leads to phosphate excretion. High levels are found in hypophosphataemic rickets. Clinical indication for request: a marker for the phosphate-wasting condition oncogenic osteomalacia and also hypophosphataemic rickets.
| Tube | 04 (EP) - EDTA Plasma |
|---|---|
| ID | Tests&Tubes0187 |
| Additional Information | Fasting sample required. Patient must not be ferritin deficient. Sample should be sent to the lab within one hour of collection. This is the frontline test for FGF-23 however results can be affected by reduced renal function. If the patient has CKD stage 3+ then FGF23 Intact should be requested instead. |
| Turn Around | Turnaround time stated by Norfolk & Norwich: 6 weeks. |
| Send to | Blood Sciences LGI (Test referred to: Norfolk & Norwich University Hospital.) |
| Contact | For further details please contact Leeds Pathology customer services: leedsth-tr.pathologycustomerservice@nhs.net. |
| Advice | Full information on all referred tests can be found on the referred tests information database, EQMS reference BSF2REC17003. |
| Collection Con | Instructions to lab: Centrifuge, separate and freeze plasma within 1h of sample collection. Minimum volume: 0.3mL plasma. |
| Sample REQ | Blood |
| Ref. Range Notes | <100 RU/mL Interpretation will be provided with the report. |
| Units | RU/mL |
| Telepath | LGI Superset FGF1R, SJUH superset JFGF1R |
