NEUROMYELITIS OPTICA (NMO) Aquaporin-4-IgG Fluorescence-Activated Cell Sorting (FACS) Assay, Serum

Specimen Required
Draw blood in a red-top. Centrifuge, remove serum from cells, and send 3.0 mL serum (2.0 mL minimum) refrigerated in a screw-capped plastic vial.

Alternate Specimen
Serum: SST

Methodology
Fluorescence-Activated Cell Sorting Assay (FACS)

Stability
Room Temperature: 72 hours; Refrigerated: 28 days; Frozen: 28 days

Reference Range
Negative

Performed
Monday, Tuesday, Thursday

Turnaround Time5-8 days
Test CodeNMOFS
CPT-4 Code (s)
86255, plus 86256 if reflexed to titer, at an additional charge
LOINC Codes
NMO/AQP4, serum: Not available

Warde
Medical
Laboratory