Specimen Collection Manual and Test Catalog
AQUAPORIN-4 ANTIBODY (IGG), CBA
Geisinger Epic Procedure Code: LAB1775 Geisinger Epic ID: 48320SPECIMEN COLLECTION
Specimen type:
Serum or CSF
Preferred collection container:
Alternate collection container:
Sterile specimen container
Specimen required:
0.5 mL serum or CSF, minimum 0.3 mL
SPECIMEN PROCESSING
Processing instructions:
Serum: Centrifuge and aliquot. CSF: Do not centrifuge
Transport temperature:
Room temperature.
Specimen stability:
Room temperature: 7 days. Refrigerated: 14 days. Frozen: 21 days.
Rejection criteria:
Serum separator tube (SST).
TEST DETAILS
CPT code(s):
86052
Note: The billing party has sole responsibility for CPT coding. Any
questions regarding coding should be directed to the payer being billed.
The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Methodology:
Cell Binding Assay-Immunofluorescence Assay
Synonyms:
Quest test code 93893
Clinical significance:
Review Date:
12/19/2024 Aquaporin-4 Antibody (IgG), CBA - Antibody to Aquaporin 4 causes neuromyelitis optica (NMO), a demyelinating disease of the central nervous system often confused diagnostically with multiple sclerosis (MS) and/or transverse myelitis. NMO causes optic neuritis and transverse myelitis. Early discrimination between MS and NMO is important, as optimum treatment for both diseases may differ considerably.
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