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

Test Code

CPT Codes

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

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.

Performing Laboratory
Quest Diagnostics Nichols Inst San Juan Capistrano
33608 Ortega Highway
San Juan Capistrano, CA 92690-6130

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.