Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

Order Display Name: Geisinger Epic Procedure Code Or ID CPT Code:  

AQUAPORIN-4 ANTIBODY (IGG), CBA

ORDERING INFORMATION:
Geisinger Epic Procedure Code: 48320        

SPECIMEN 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
Specimen 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.
Methodology:
Cell Binding Assay-Immunofluorescence Assay
Synonyms:
Quest code 93893
Clinical significance:
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.

Performing Locations

Quest Diagnostics

Technical Lead: Michael Weaver    
Frequency: Set up: Wednesday, Friday. Report available: 8 days    
Performed STAT? No
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