Posted Date
Effective Date
Update Type Reference range changed
CPT Code 86225

Order code:                  ADNA

Effective October 15, 2019, the MLabs will switch the DNA Antibody, Double-Stranded (ADNA) assay from an ELISA format to a chemiluminescent immunoassay methodology.  The new assay has fewer false positive results and a better correlation with an accepted reference method Farr assay performed at RDL reference laboratory.


Reference Range


Current Reference Range

New Reference Range

< 30.0 < 27 IU/mL Negative
  27-35 IU/mL Borderline Positive
  ≥ 36 IU/mL Positive