Test Code NMOFS Neuromyelitis Optica (NMO)/Aquaporin-4-IgG Fluorescence-Activated Cell Sorting (FACS) Assay, Serum
Reflex Tests
Test ID | Reporting Name | Available Separately | Always Performed |
---|---|---|---|
NMOTS | NMO/AQP4 FACS Titer, S | No | No |
Testing Algorithm
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.
Method Name
Flow Cytometry
Specimen Type
SerumAdvisory Information
Specimen Required
Container/Tube:
Preferred: Red top
Acceptable: Serum gel
Specimen Volume: 3 mL
Specimen Minimum Volume
2 mL
Specimen Stability Information
Specimen Type | Temperature | Time | Special Container |
---|---|---|---|
Serum | 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) and Time(s) Performed
Monday, Tuesday, Thursday; 6 p.m.
Performing Laboratory

CPT Code Information
86255
86256-NMO/AQP4-IgG FACS titer (if appropriate)
Secondary ID
38324Forms
If not ordering electronically, complete, print, and send a Neurology Specialty Testing Client Test Request (T732) with the specimen.