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| Test code: | 4727 |
| Type of disorder: | Neuromuscular Disorders |
| Disease(s) tested for: | Paraneoplastic Neurological Syndrome, Neuromyotonia |
| Tests included: | CASPR2 Antibody Test VGKC Antibody Test |
| Clinical Significance: | Anti- voltage gated potassium channels (VGKC) and anti-CASPR2 antibodies are found in patients with progressive muscle stiffness, myokymia, autonomic dysfunction, and delayed muscle relaxation. |
| Methodology: | Radioimmunoassay |
| Reference Range: | See Laboratory Report |
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.
| CPT: | 83519, 86255 |
Please label each specimen tube with two forms of patient identification. These forms of identification must also appear on the requisition form.
| Specimen Type: | Serum |
| Specimen Stability: | Room temperature: 72 hours, Refrigerated: 21 days, Frozen: 28 days, |
| Specimen Requirements: | 2 mL (0.5 mL minimum) serum in a Red-top tube or Serum Separator Tube (SST) |
| Instructions: | Serum must be separated from whole blood within 48 hours of collection. |
| Transport Temperature: | Refrigerated |
| Set-up/Analytic Time: | 7-10 days |
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