Neurology Antibody, CBA IFA
Quest Diagnostics
Sample type: Serum
Requires fasting: No
Phlebotomy required
Details
Neurology Antibody, CBA IFA - Detects specific neuronal antibodies to help evaluate autoimmune encephalitis and certain paraneoplastic neurological disorders.
- AMPAR1 Antibody, CBA
- AMPAR2 Antibody, CBA
- CASPR2 Antibody, CBA
- GABAB Receptor Antibodies, CBA
- Leucine-Rich, Glioma-Inactivated Protein 1 Antibody, CBA
- NMDAR1 Antibody, CBA
Estimated days for results: Results should be available within 2 - 5 business days after samples are received at the lab.
Neurology Antibody, CBA IFA - Autoantibodies to brain neurotransmitter cell surface receptors may be seen in paraneoplastic syndromes or in idiopathic autoimmune encephalitis. Antibodies to N-methyl-D-aspartate receptor (NMDAR1) may be seen in a progressive syndrome leading to behavioral changes, psychosis, seizures and coma; teratoma or other neoplasms are seen in some cases. Antibodies to voltage gated potassium channel (VGKC) are found in paraneoplastic and idiopathic autoimmune encephalopathy; in many cases, antibodies actually target VGKC-associated proteins LGI-1 or CASPR2. Antibodies to AMPAR1 and AMPAR2 are usually associated with limbic encephalitis but can present with other symptoms or psychosis, and is paraneoplastic in >50% of cases.
2–5 business days
AMPAR1 Ab, CBA Negative
AMPAR2 Ab, CBA Negative
GABABR Ab, CBA Negative
LGI1 Ab, CBA Negative
CASPR2 Ab, CBA Negative
Blood Draw Options with Fullscript
Fullscript offers several convenient phlebotomy options to complete your lab testing:
Quest Diagnostics Patient Service Centers (PSC)
- Location: Visit a nearby Quest Diagnostics Patient Service Center.
- Cost: $10 sample collection fee (paid during lab order checkout).
- Scheduling: Schedule your appointment here. Appointments are recommended to reduce wait times. Walk-ins are accepted, but may experience delays. Aim to arrive 10 minutes before your appointment.
- Collection Instructions:
- Bring a valid ID.
- Bring your digital or printed requisition form, available in the Labs tab of your Fullscript account.
- Check-in: Scan the QR code from your confirmation email or follow kiosk instructions.
- More Info: Quest Diagnostics blood draw guide
Getlabs Mobile Phlebotomy
- Location: Sample collection at your home or office.
- Cost: $85 sample collection fee (paid during lab order checkout).
- Availability: Available in most locations – enter your ZIP code during checkout to confirm.
- Scheduling: Schedule your appointment here through your Fullscript account.
- Collection Instructions:
- Have your digital or printed requisition form and valid ID ready.
- Your phlebotomist will contact you by phone to coordinate arrival.
- More Info: Getlabs blood draw guide
- Preferred Specimen(s): 0.5 mL serum collected in a red-top tube (no gel)
- Alternative: NA
- Minimum Volume: 0.3 mL
- Collection Instructions: NA
- Transport Container: Transport tube
- Transport Temperature: Room Temperature
- Specimen Stability:
- Room temperature: 7 days
- Refrigerated: 14 days
- Frozen: 21 days
- Reject Criteria:
- Serum separator tube (SST)
State restrictions:
Patient can't order this test if they are located in Puerto Rico, Hawaii, Rhode Island, New Jersey, or New York
