Laboratory Medicine
Test Directory / Double Stranded DNA antibody assay
Double Stranded DNA antibody assay
Brown clotted serum, gel barrier
| Test | Double Stranded DNA antibody assay |
|---|---|
| Common Abbreviations | dsDNA |
| Profile | Double stranded DNA antibodies are only performed if ANA is positive. Referred for Crithidia antibody if dsDNA assay is positive. |
| Clinical Indication | Double stranded DNA antibodies are associated with SLE |
| Specimen Type | Blood |
| Sample Type | Serum |
| Minimum Volume | 5 ml |
| Special Precautions | No special requirements |
| Stability | 10 days |
| Turnaround Time | 7 days (turnaround time maybe longer if referred for confirmatory Crithidia test) |
| Laboratory | York |
| Reference Interval | Neg <27 IU/mL Intermediate 27-35 IU/mL Pos >35 IU/mL |
| Limitations | The assay should not be performed on grossly haemolysed or grossly lipaemic samples. Only serum samples will be accepted |
