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HelpTest Code 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.
Useful For
As a biomarker of astrocyte activation related to brain injury and various neurological disorders
Reporting Name
Glial Fibrillary Acidic Protein, PSpecimen Type
EDTA PlasmaSpecimen Minimum Volume
Plasma: 0.75 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| EDTA Plasma | Refrigerated (preferred) | 14 days |
| Frozen | 90 days | |
| Ambient | 72 hours |
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
| Gross icterus | Reject |
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
Day(s) Performed
Wednesday
Report Available
1 to 9 daysSpecimen Retention Time
180 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
83520
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 |