Update Type: Test Code Change
Test Updated: 12/14/2022
Test Overview
Reference Range *

Interpretive report provided

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Monday - Sunday
Analytic Time

6 - 12 days

Soft Order Code
Reference Laboratory
Special Testing
Specimen Requirements

Collect specimen in a red top or SST tube. Spin and Aliquot into a screw capped plastic tube. Send to Specimen Processing refrigerated

1. For optimal antibody detection, specimen collection is recommended prior to initiation of immunosuppressant medication or intravenous immunoglobulin (IVIg) treatment.

2. This test should not be requested in patients who have recently received radioisotopes, therapeutically or diagnostically, because of potential assay interference. The specific waiting period before specimen collection will depend on the isotope administered, the dose given, and the clearance rate in the individual patient. Specimens will be screened for radioactivity prior to analysis. Radioactive specimens received in the laboratory will be held 1 week and assayed if sufficiently decayed, or canceled if radioactivity remains.
Normal Volume
4 mL serum
Minimum Volume
2 mL serum
Storage Temperature
Refrigerated preferred, frozen acceptable
Additional Information

Cell binding assay, IFA,RIA, WB, IB

CPT Code
86255 x9, 84182