Neuromyelitis Optica/Aquaporin-4-IgG
Label Mnemonic: NMOIGGS
Epic Lab Code: LAB8502
Downtime Form: A-1a Miscellaneous Request
Commercial Mail-out Laboratory
5231 RCP
356-8593
Specimen(s):
Serum
Specimen Instructions:
Include relevant clinical information, name, phone number, mailing address, and e-mail address (if applicable) of ordering physician.
Collection Medium:
Red top tube 5 mL (Clot Activator)
Minimum:
Preferred Minimum: 2.0 mL serum in a red-top tube
Absolute Minimum: 0.5 mL serum in a red-top tube
Delivery Instructions:
Deliver to laboratory immediately after collection.
Turn Around Time:
4 days upon receipt at reference laboratory
Reference Range:
Negative
Comments:
Useful For:
*Diagnosis of a neuromyelitis optica spectrum disorder
*Diagnosis of autoimmune AQP4 channelopathy
*Distinguishing NMOSD from multiple sclerosis early in the course
 of disease

ALGORITHM: When the results of this assay require further evaluation, the titer assay will be performed at an additional charge.
Methodology:
Fluorescence-Activated Cell Sorting Assay (FACS)
CPT Code:
86255
86256-NMO/AQP4-IgG FACS titer (if appropriate)
 
See Additional Information:
Specimens Requiring Immediate Delivery