Test Directory

Clear All
Test Code
HUABB
Test Name
Neuronal Nuclear Autoantibody, Serum
CPT Codes
86255
Expected Turnaround Time
3 - 5 days
Clinical Utility

Anti-Hu (ANNA1) antibody is found in 5-10% patients with small cell carcinoma of the lung and are associated with paraneoplastic encephalomyelitis and sensory neuropathy. This semi-quantitative assay may be useful in monitoring therapeutic responses in select cases.
Specimen and Container Info

Specimen Type: Serum

Collection Container: Gold Top, Serum Separator

Alternate Collection Container: Red Top, Plain

Desired Specimen Volume: 2 mL
Collection Instructions
  1. Collect a gold top, serum separator tube via venipuncture.
Processing and Submission Instructions
  1. Separate serum from cells within 48 hours of collection.
  2. Transfer 2 mL of serum to a clear aliquot tube (screw cap).
Transport Instructions

Transport to the laboratory refrigerated. 
Stability Requirements

Room Temperature

72 hours

Refrigerated

28 days

Frozen

28 days
Methodology
Automated Nanoliter Scale Immunoassay
Reference Intervals

 See patient report.
Reference Lab
Athena
Testing Schedule
Varies
The American Medical Association (AMA) Current Procedural Terminology (CPT) codes published by HNL Lab Medicine are guidelines and are intended for informational purposes only. CPT coding is the exclusive responsibility of the billing entity. View the Terms.
© 2026 HNL Lab Medicine. All rights reserved.