Voltage-Gated Potassium Channel (VGKC) Antibody, CSF

Test Code

94531

CPT Codes
83519

Preferred Specimen

1 mL CSF collected in a sterile leak-proof container

Minimum Volume

0.5 mL

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

Room temperature: 48 hours
Refrigerated: 14 days
Frozen: 28 days

Methodology
Radioimmunoassay (RIA)

FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Setup Schedule

Report available: 7-14 days

Clinical Significance

VGKC antibody may be detected in acquired neuromyotonia, Morvan’s syndrome, autoimmune limbic encephalitis, autonomic dysfunction, peripheral nerve hyperexcitability, chronic idiopathic pain, and in SIADH.

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.