Pathology | Eastern Health

Test & Collection Guide

PLEASE NOTE: Recent changes have been made to this Test

Recent changes for FGF-23
Date	Field	Changed From	Changed To
17th November 2025	Request Group	BMISC	FGF23
	Frequency	As required	Fortnightly

FGF-23

Ordering information:

Indication: Investigation of hyperphosphataemic rickets/ osteomalacia. Not first line investigation for hyperphosphataemia. Requires approval by Chemical Pathologist. Suggest endocrine consult prior to request.

Cost to requesting unit: $90

Alternate names:

Fibroblast Growth Factor 23

Laboratory:

Referred Test

Test Code:

FGF23

Medicare details:

MBS number: N/A
100% MBS price:

Specimen types:

Plasma

Container types:

EDTA

Collection Instructions:

Collect on ice, send to lab without delay.

Minimum Adult Volume:

3 mL

Paediatric Minimum Volume:

2 mL

Frequency:

Fortnightly

Result Turnaround Time:

3-4 weeks

Laboratory Use Only

Storage Instructions:

Spin, separate and freeze

Add to Chemical Pathologist review list.

Transport Instructions:

Send Frozen

Cannot be added on.

External Laboratory:

Alfred Hospital

External Laboratory details...