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dsDNA Antibody

Container:

dsDNA Antibody
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Reference Range:

Negative: 0 - 20 IU/ml
Weak positive: 20 - 75 IU/ml
Positive: > 75 IU/ml

Turnaround Time:

5 working days

Comments:

Internal Test Code:- DSD

Description:

Indication: To diagnose and monitor systemic lupus erythematosus (SLE)

Background: Antibodies to native dsDNA are characteristic of the autoimmune disease, systemic lupus erythematosus (SLE). It is suggested that circulating DNA/anti-DNA immune complexes play a role in the pathogenesis of SLE (particularly renal disease) . They may also be seen in autoimmune chronic active hepatitis (AICAH) and in rheumatoid arthritis (RA) treated with sulphasalazine. In some cases, an increase in dsDNA antibody levels will precede SLE reactivation. The presence of dsDNA antibodies may precede the onset of SLE clinical symptoms by several weeks and may also indicate remission or control of SLE.

Method: Enzyme Linked Immunosorbent Assay (ELISA)

Repeat Frequency: As clinically indicated

Preparation:

None

Vessels and Containers:

Serum gold-top

Sample Requirements:

500µl serum

Interference:

None known

How result is reported:

Numerically in IU/ml

Important Information:

Entry Last Modified 21/06/2019

Special Precautions:

None

Time limits for requesting additional examinations:

Sample available in this laboratory for approximately 2 weeks. Test can only be added to samples already received by the immunology laboratory and within this time period.