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HelpTest Code 23FBG Fibroblast Growth Factor-23 (FGF23), In Situ Hybridization
Additional Testing Requirements
If additional interpretation or analysis is needed, request PATHC / Pathology Consultation along with this test.
Shipping Instructions
Attach the green pathology address label included in the kit to the outside of the transport container.
Necessary Information
A pathology/diagnostic report and a brief history are required.
Specimen Required
Supplies: Pathology Packaging Kit (T554)
Specimen Type: Formalin-fixed, paraffin-embedded tissue block
Specimen Volume: Entire block
Specimen Type: Tissue slides
Slides: 5 Unstained glass, positively charged slides with 5 (+ or -1)-microns formalin-fixed, paraffin-embedded tissue
Secondary ID
620249Useful For
Assessing fibroblast growth factor-23 (FGF23) expression
Method Name
In Situ Hybridization (ISH)
Specimen Type
SpecialSpecimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Special | Ambient (preferred) | ||
| Refrigerated | |||
Reject Due To
| Wet/frozen tissue Cytology smears Nonformalin fixed tissue Nonparaffin embedded tissue Noncharged slides ProbeOn slides |
Reject |
Interpretation
This test, when not accompanied by a pathology consultation request, will be answered as either positive or negative. If additional interpretation or analysis is needed, request PATHC / Pathology Consultation along with this test.
Method Description
In situ hybridization on sections of paraffin-embedded tissue.(Unpublished Mayo method)
Day(s) Performed
Monday through Friday
Report Available
5 to 8 daysSpecimen Retention Time
Until staining is completePerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
88365-Primary
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| 23FBG | Fibroblast Growth Factor-23, ISH | 104259-7 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 620250 | Interpretation | 50595-8 |
| 620251 | Participated in the Interpretation | No LOINC Needed |
| 620252 | Report electronically signed by | 19139-5 |
| 620253 | Material Received | 81178-6 |
| 620254 | Disclaimer | 62364-5 |
| 620255 | Case Number | 80398-1 |
Forms
If not ordering electronically, complete, print, and send a Immunohistochemical (IHC)/In Situ Hybridization (ISH) Stains Request (T763) with the specimen.