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Test Code GQ1ES Ganglioside GQ1b Antibody, IgG, ELISA, Serum


Necessary Information


Provide the following information:

1. Relevant clinical information

2. Ordering provider name, phone number, mailing address, and email address



Specimen Required


Patient Preparation: For optimal antibody detection, specimen collection is recommended to occur prior to initiation of immunosuppressant medication or intravenous immunoglobulin treatment.

Supplies: Sarstedt Aliquot Tube, 5 mL (T914)

Collection Container/Tube:

Preferred: Red top

Acceptable: Serum gel

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL

Collection Instructions: Centrifuge and aliquot serum into a plastic vial.


Useful For

Evaluating patients with an underlying demyelinating neuropathy

 

Supporting the diagnosis of a ganglioside GQ1b IgG-related disorder

Method Name

Enzyme-Linked Immunosorbent Assay (ELISA)

Reporting Name

GQ1b-IgG ELISA, S

Specimen Type

Serum

Specimen Minimum Volume

0.5 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 Reject
Gross lipemia Reject
Gross icterus Reject

Reference Values

Negative

Day(s) Performed

Monday, Wednesday, Friday

Report Available

5 to 8 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

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

CPT Code Information

83516

LOINC Code Information

Test ID Test Order Name Order LOINC Value
GQ1ES GQ1b-IgG ELISA, S 63254-7

 

Result ID Test Result Name Result LOINC Value
621107 GQ1b-IgG ELISA, S 63254-7