Print Preview

Glial Fibrillary Acid Protein (GFAP), Serum-994

Test info

Test name:

Glial Fibrillary Acid Protein (GFAP), Serum

Test number:

994

Excellian order number:

LAB994

Abbreviation:

MSO

Useful for:

This test is used for the measurement of glial fibrillary acidic protein (GFAP) in serum.

Specimen

Patient preparation information:

High serum biotin concentrations in patients taking biotin supplements may cause an interference in this assay. Patients may be advised to stop biotin consumption at least 72 hours prior to sample collection.

Specimen type:

Serum

Collection container:

Gold serum separator (SST) tube

Volume:

1.0 mL

Minimum volume:

0.7 mL

Collection instructions:

Immediatley following collection, mix sample by gently inverting 5 times

Processing instructions:

Allow sample to clot for a minimum of 30 minutes
Spin within two (2) hours of sample collection

Transport container:

Gold serum separator (SST) tube

Alternate collection container:

Red serum vial/tube - 5 mL

Alternate processing instructions:

Allow sample to clot for a minimum of 30 minutes
Spin within two (2) hours of sample collection
Transfer serum to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as serum

Alternate transport container:

Transfer vial/tube with cap - 12mL (LabCorp)

Transport and stability:

Ambient (preferred) - 14 days

Refrigerated - 14 days

Frozen - 14 days

Freeze/Thaw cycle - stable x3

Performance

Performing lab:

LabCorp (484430); R-NX

TAT:

1 - 3 days

Method:

Roche Diagnostics Electrochemiluminescence Immunoassay (ECLIA)

Clinical and Interpretive info

Reference ranges:

See report

Billing

CPT codes:

83520

Tracking

Date created:

12/01/2025

Review date:

12/01/2025