Sign in →

Test Mnemonic GM1 Ganglioside Antibody Panel, Serum

Additional Codes

Mayo Test ID
GM1B

Reporting Name

Ganglioside Ab Panel, S

Useful For

Supporting diagnosis of neurological diseases-primarily motor neuron disease and motor neuropathies

Profile Information

Test ID Reporting Name Available Separately Always Performed
IGG_M IgG Monos. GM1 No Yes
IGM_M IgM Monos. GM1 No Yes
IGG_A IgG Asialo. GM1 No Yes
IGM_A IgM Asialo. GM1 No Yes
IGG_D IgG Disialo. GD1b No Yes
IGM_D IgM Disialo. GD1b No Yes

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type

Serum


Specimen Required


Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Specimen Volume: 1 mL


Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Frozen (preferred) 14 days
  Refrigerated  14 days

Reference Values

99% of Normals Fall at or Below This Titer

IgG monosialo GM1

1:500

IgM monosialo GM1

1:1,000

IgG asialo GM1

1:4,000

IgM asialo GM1

1:4,000

IgG disialo GD1b

1:1,000

IgM disialo GD1b

1:1,000

 

Borderline Ranges

IgG monosialo GM1

=1:1,000

IgM monosialo GM1

=1:2,000

IgG asialo GM1

=1:8,000

IgM asialo GM1

No borderline range (normal: ≤4,000)

IgG disialo GD1b

No borderline range (normal: ≤1,000)

IgM disialo GD1b

No borderline range (normal: ≤1,000)

 

Abnormal Results

IgG monosialo GM1

>1:1,000

IgM monosialo GM1

>1:2,000

IgG asialo GM1

>1:8,000

IgM asialo GM1

>1:4,000

IgG disialo GD1b

>1:1,000

IgM disialo GD1b

>1:1,000

Day(s) and Time(s) Performed

Tuesday, Thursday; 3 p.m.

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information

83520 x 6

LOINC Code Information

Test ID Test Order Name Order LOINC Value
GM1B Ganglioside Ab Panel, S 82455-7

 

Result ID Test Result Name Result LOINC Value
4414 IgG Asialo. GM1 46969-2
4416 IgG Disialo. GD1b 13662-2
4412 IgG Monos. GM1 43240-1
4415 IgM Asialo. GM1 43179-1
4417 IgM Disialo. GD1b 13661-4
4413 IgM Monos. GM1 43241-9
4418 Comment 48767-8

Method Name

Quantitative Enzyme-Linked Immunosorbent Assay (ELISA)

Forms

If not ordering electronically, complete, print, and send a Neurology Specialty Testing Client Test Request (T732) with the specimen (http://www.mayomedicallaboratories.com/it-mmfiles/neurology-request-form.pdf)