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




Test Mnemonic

VOLTCA

CPT Codes

  • 86596 - QTY (1)

Aliases

  • Voltage-Gated Calcium Channel (VGCC) Antibody

Performing Laboratory

ARUP


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLSerumSST (Gold) RefrigeratedSeparate from cells ASAP or within 2 hours of collection and transfer to standard aliquot tube.

Alternate Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLSerumNo additive (Red) RefrigeratedSeparate from cells ASAP or within 2 hours of collection and transfer to standard aliquot tube.

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.2 mL     

Stability

Environmental Condition Description
RefrigeratedAfter separation from cells: 2 weeks
FrozenAfter separation from cells: 1 month
AmbientAfter separation from cells: 72 hours

Days Performed

Tue

Turnaround Time

2 - 9 days

Methodology

Name Description
Quantitative Radioimmunoassay 

Reference Range

P/Q-Type Calcium Channel Antibody
Sex Age From Age To Type Range Range Unit
       FreetextNegative: 0.0 to 24.5 pmol/L 
       FreetextIndeterminate: 24.6 to 45.6 pmol/L 
       FreetextPositive: 45.7 pmol/L or greater 

Special Info

CSF will be rejected. Plasma is not acceptable. Hemolyzed or grossly lipemic specimens are unacceptable. This test is New York DOH approved.

Clinical Info

Aid in the evaluation of muscle weakness in the context neuromuscular junction disorder with or without cancer, or the diagnosis of paraneoplastic neurological syndromes.