| Clinical Significance: | Anti-voltage-gated calcium channels (VGCC), P/Q type are found in patients with muscle weakness, sometimes accompanied by autonomic nervous system dysfunction or cerebellar ataxia. Less commonly paraneoplastic cerebellar degeneration.
Typical Presentation: Muscle weakness, sometimes accompanied by autonomic nervous system dysfunction or cerebellar ataxia. Less commonly paraneoplastic cerebellar degeneration. |
| Methodology: |
Radioimmunoassay
|
| Reference Range: | Negative < or = 120; Borderline 121-200; Positive >200 |
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.
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: 28 days, Frozen: 1 year, |
| 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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