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Test Catalog
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AChR/MuSK Reflexive Antibody Test |
#483 |
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| Type of Disorder: |
Neuromuscular Disorders |
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| Typical Presentation: |
Limb weakness, ptosis, diplopia, dysarthria, dysphagia |
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| Disease(s) tested for: |
Myasthenia Gravis (MG) |
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| Test Details |
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| Test Code: |
483 |
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| Informed Consent Required: |
No |
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| Medicare ABN Required: |
No |
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| Technical Information |
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| Utility: |
Detects binding antibodies to the acetylcholine receptor in patients with generalized Myasthenia Gravis. When negative reflexes to MuSK quantitative titers antibody test. |
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| Methodology: |
RIA Immunoprecipitation |
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| Reference Value: |
For AChR
Normal: Negative
Mild/Moderate Equivocal: Borderline
Positive: Elevated
For MuSK
Normal: <10
Borderline: >10
Positive: >20 |
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| Patents: |
7,267,820, 7,732,147 |
| CPT Coding |
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|
The CPT codes provided are based on AMA guidelines
and are for informational purposes only. CPT coding
is the sole responsibility of the billing party.
Please direct any questions regarding coding to
the payer being billed.
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| Stacked CPT Code(s): |
83519(2) |
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| Shipping Considerations |
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| Please label each specimen tube with two forms of patient identification. These forms of identification must also appear on the requisition form. |
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| Preferred Specimen Requirements |
| Type: |
Serum |
| Minimum Volume: |
2 ml |
| Collection Tube: |
Red top |
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| Alternate
Specimen Requirements |
| Type: |
Whole blood |
| Collection Tube: |
Red top |
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| Storage Conditions: |
Refrigerate if not shipped same day. Ship whole blood immediately. |
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| Shipping Conditions: |
Room temperature, avoid freezing. Ship same day. |
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| Test Turnaround: |
7-21 days |
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