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HelpTest ID GFAPP Glial Fibrillary Acidic Protein (GFAP), Plasma
Shipping Instructions
Send refrigerated.
Specimen Required
Patient Preparation:
Fasting: 8 hours, required
Supplies: Sarstedt Aliquot Tube, 5 mL (T914)
Collection Container/Tube: Lavender top (EDTA)
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL plasma
Collection Information: Centrifuge and aliquot plasma into a plastic vial.
Reporting Name
Glial Fibrillary Acidic Protein, PSpecimen Type
EDTA PlasmaSpecimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| EDTA Plasma | Refrigerated (preferred) | 14 days |
| Frozen | 90 days | |
| Ambient | 72 hours |
Report Available
1 to 9 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| GFAPP | Glial Fibrillary Acidic Protein, P | 97604-3 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| GFAPP | Glial Fibrillary Acidic Protein, P | 97604-3 |
Forms
If not ordering electronically, complete, print, and send a Neurology Specialty Testing Client Test Request (T732) with the specimen.
Useful For
As a biomarker of astrocyte activation related to brain injury and various neurological disorders
Day(s) Performed
Wednesday
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
83520
Specimen Minimum Volume
Plasma: 0.75 mL
Reference Values
<40 years: ≤32.6 pg/mL
40-49 years: ≤50.5 pg/mL
50-59 years: ≤67.5 pg/mL
60-69 years: ≤90.3 pg/mL
≥ 70 years: ≤120.8 pg/mL
Method Name
Chemiluminescent Enzyme Immunoassay (CLEIA)