Voltage Gated Calcium Channel (VGCC) Antibody Assay (VGCACH)

Test Code

Quest Code

CPT Codes

Preferred Specimen
1 mL serum in gold top tube

Minimum Volume
0.2 mL

Transport Container
Transport tube

Transport Temperature
Refrigerated (cold packs)

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

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

Radiobinding Assay (RBA)

Setup Schedule
Evening Wednesday, Saturday

Report Available
11 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 Institute-San Juan Capistrano, CA
33608 Ortega Highway
San Juan Capistrano, CA 92675-2042

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.