Anti-DNA (double-stranded-dsDNA) Ab
Investigation : Anti-DNA (double-stranded-dsDNA) Ab
Specimen type : Serum
Spec container : Serum Gel 
Volume required : 5ml
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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