|Investigation||:||Anti-DNA (double-stranded-dsDNA) Ab|
|Spec container||:||Serum Gel|
|Reference range||:||screen: negative or <7 (quantitation) IU/ml|
|Turnaround||:||<7 days (screen), <14 days (quantitation)|
An initial screen (method: enzyme immunoassay) is undertaken and if positive a quantitative measurement is done (method: radioimmunoassay - Farr assay).
N.B. Requests for autoantibodies should be selective and relevant to the clinical circumstances. There is rarely any merit in requesting a particular autoantibody if there is no clinical evidence of the disease(s) with which it is associated .
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