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HelpTest ID NMOFC Neuromyelitis Optica (NMO)/Aquaporin-4-IgG Fluorescence-Activated Cell Sorting (FACS) Assay, Spinal Fluid
Useful For
Diagnosis of a neuromyelitis optica spectrum disorder (NMOSD)
Diagnosis of autoimmune AQP4 channelopathy
Distinguishing NMOSD from multiple sclerosis early in the course of disease
Reflex Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| NMOTC | NMO/AQP4 FACS Titer, CSF | No | No |
Testing Algorithm
When the results of this assay require further evaluation, NMOTC / Neuromyelitis Optica (NMO)/Aquaporin-4-IgG Fluorescence-Activated Cell Sorting (FACS) Assay Titer, Spinal Fluid will be performed at an additional charge.
Specimen Type
CSFOrdering Guidance
Necessary Information
Include relevant clinical information, name, phone number, mailing address, and e-mail address (if applicable) of ordering physician.
Specimen Required
Collection Container/Tube: Sterile vial
Specimen Volume: 3 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| CSF | Refrigerated (preferred) | 28 days |
| Frozen | 28 days | |
| Ambient | 72 hours |
Reject Due To
| Gross hemolysis | OK |
| Gross lipemia | OK |
| Gross icterus | OK |
Reference Values
Negative
Day(s) Performed
Monday, Tuesday, Thursday
Report Available
5 to 8 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
86053
86053-titer (if appropriate)