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Special Instructions
If reflex test is performed, additional charges/CPT code(s) may apply.
Expected Turnaround Time
3 - 5 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Related Documents
Specimen Requirements
Specimen
Serum
Volume
2 mL
Minimum Volume
1 mL (Note: This volume does not allow for repeat testing.)
Container
Serum from a red-top tube, gel-barrier tube, or serum transfer tube
Storage Instructions
Room temperature
Stability Requirements
Temperature | Period |
|---|---|
Room temperature | 14 days |
Refrigerated | 14 days |
Frozen | 14 days |
Freeze/thaw cycles | Stable x3 |
Causes for Rejection
Gross hemolysis; grossly lipemic
Test Details
Use
Diagnosis of inflammatory demyelinating diseases (IDD) with similar phenotype to neuromyelitis optica spectrum disorder (NMOSD), including optic neuritis (single or bilateral) and transverse myelitis; diagnosis of autoimmune myelin oligodendrocyte glycoprotein (MOG)-opathy; diagnosis of neuromyelitis optica (NMO); distinguishing NMOSD, acute disseminated encephalomyelitis (ADEM), optic neuritis, and transverse myelitis from multiple sclerosis early in the course of disease; diagnosis of ADEM; prediction of a relapsing disease course
Limitations
MOG IgG antibody titers may assist in monitoring disease course and prognosis, but their role is imperfect. Antibody titers may increase but may not be predictive of relapses or attacks. MOG IgG antibodies may become undetectable with immunosuppression, but this does not necessarily indicate clinical response.
Results should not be used as a diagnostic procedure without confirmation of the diagnosis by another medically established diagnostic product or procedure.
This test was developed and its performance characteristics determined by Labcorp. It has not been cleared or approved by the Food and Drug Administration.
Methodology
Immunofluorescence (IFA)
References
Apiwattanakul M, Popescu BF, Matiello M, et al. Intractable vomiting as the initial presentation of neuromylitis optica. Ann Neurol. 2010 Nov;68(5):757-761.21031587
Hyun JW, Woodhall MR, Kim SH, et al. Longitudinal analysis of myelin oligodendrocyte glycoprotein antibodies in CNS inflammatory diseases. J Neurosurg Psychiatry. 2017 Oct;88(10):811-817.28684532
Jarius S, Ruprecht K, Kleiter I, et al. MOG-IgG in NMO and related disorders: a multicenter study of 50 patients. Part 1: Frequency, syndrome specificity, influence of disease activity, long-term course, association with AQP4-IgG, and origin. J Neuroinflammation. 2016 Sep 26;13(1):279.27788675
Lennon VA, Wingerchuk DM, Kryzer TJ, et al. A serum autoantibody marker of neuromyelitis optica: distinction from multiple sclerosis. Lancet. 2004 Dec 11-17:364(9451):2106-2112.15589308
Peschl P, Bradl M, Höftberger R, Berger T, Reindl M. Myelin Oligodendrocyte Gilcoprotein: Deciphering a Target in Inflammatory Demyelinating Diseases. Front Immunol. 2017 May 8;8:52928533781
Pittock SJ, Weinshenker BG, Lucchinetti CF, Wingerchuk DM, Corboy JR, Lennon VA, Neuromyelitis optica brain lesions localized at sites of high aquaporine 4 expression. Arch Neurol. 2006 Jul;63(7):964-968.16831965
Reindl M, Jarius S, Rostasy K, Berger T. Myelin oligodendrocyte glycoprotein antibodies: How clinically useful are they? Curr Opin Neurol. 2017 Jun;30(3):295-301.28248700
Waters PJ, McKeon A, Leite MI, et al. Serologic diagnosis of NMO: a multicenter comparison of aquaporin-4-IgG assays. Neurology. 2012 Feb 28;78(9):665-671; discussion 669.22302543
Waters P, Woodhall M, O'Conner KC, et al. MOG cell-based assay detects non-MS patients with inflammatory neurlogic disease. Neurol Neutoimmunol Neuroinflamm. 2015 Mar 19;2(3);e89.25821844
Wingerchuk DM, Banwell B, Bennett JL, et al. International consensus diagnostic criteria for neuromyelitis optica spectrum disorders. Neurology. 2015 Jul 14;85(2):117-189.26092914
Wingerchuk DM, Lennon VA, Lucchinetti CF, Pittock SJ, Weinshenker BG. The spectrum of neuromyelitis optica. Lancet Neurol. 2007 Sep;6(9):805-815.17706564
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 505310 | Anti-MOG, Serum | 91545-4 | 505311 | MOG Antibody, Cell-based IFA | 91545-4 |
| Reflex Table for MOG Antibody, Cell-based IFA | ||||||
|---|---|---|---|---|---|---|
| Order Code | Order Name | Result Code | Result Name | UofM | Result LOINC | |
| Reflex 1 | 505312 | Anti-MOG Antibody Titer, Serum | 505312 | Anti-MOG Antibody Titer, Serum | 91544-7 | |
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The LOINC® codes are copyright © 1994-2021, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. Permission is granted in perpetuity, without payment of license fees or royalties, to use, copy, or distribute the LOINC® codes for any commercial or non-commercial purpose, subject to the terms under the license agreement found at https://loinc.org/license/. Additional information regarding LOINC® codes can be found at LOINC.org, including the LOINC Manual, which can be downloaded at LOINC.org/downloads/files/LOINCManual.pdf