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Geisinger Medical Laboratories Test Catalog
NEUROMYELITIS OPTICA/AQUAPORIN-4-IGG FLUORESCENCE-ACTIVATED CELL SORTING ASSAY, SERUM |
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Geisinger Epic Procedure Code: LAB1044
Geisinger Epic ID: 52101
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SPECIMEN COLLECTION |
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Specimen type: |
Serum | |
Preferred collection container: |
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Alternate Collection Container: |
3.5 mL gold-top (serum separator) tube
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Specimen required: |
4 mL serum (preferred); minimum 2 mL serum. Preferred specimen is serum collected in in plain red-top tube. Serum from TWO gold-top (3.5 mL) serum separator tubes also acceptable. | |
Special notes: |
Include relevant clinical information, name, phone number, mailing address, and e-mail address (if applicable) of ordering physician. | |
| SPECIMEN PROCESSING |
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Specimen processing instructions: |
Centrifuge and aliquot. | |
Transport temperature: |
Refrigerated (cold packs) | |
Specimen stability: |
Room temperature: 72 hours. Refrigerated: 28 days. Frozen: 28 days. | |
TEST DETAILS |
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CPT code(s): |
86053 | |
| 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. | ||
Test includes: |
When the results of this assay require further evaluation, NMOTS / Neuromyelitis Optica (NMO)/Aquaporin-4-IgG Fluorescence-Activated Cell Sorting (FACS) Titer Assay, Serum will be performed at an additional charge. | |
Methodology: |
Flow Cytometry |
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Synonyms: |
Quest test code 94039, NMO/Aqp4 IgG
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Clinical significance: |
Diagnosis of a neuromyelitis optica spectrum disorder (NMOSD) Diagnosis of autoimmune AQP4 channelopathy. Distinguishing NMOSD from multiple sclerosis early in the course of disease. | |