Voltage-Gated Calcium Channel (VGCC) P/Q-Type Antibody

Test Code
34057


CPT Codes
86596

Preferred Specimen
1 mL serum


Minimum Volume
0.2 mL


Transport Container
Plastic screw-cap vial


Transport Temperature
Refrigerated (cold packs)


Specimen Stability
Room temperature: 48 hours
Refrigerated: 7 days
Frozen: 35 days


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Received room temperature • Freeze/thaw greater than 3 cycles • Gross hemolysis • Lipemic


Methodology
Radiobinding Assay (RBA)

Setup Schedule
Set up: Wed; Report available: 4 days


Reference Range
<30 pmol/L


Clinical Significance
To diagnose Lambert-Eaton myasthenic syndrome, a paraneoplastic syndrome associated with small-cell lung carcinoma.




The CPT Codes provided in this document 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 payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.