Just a positive ss-DNA IgG does not mean much and does not carry much diagnostic value. You may or may not have lupus. It is important to know your ANA staining pattern. Homogenous ANA staining pattern is very specific of lupus. If the ANA staining pattern is homogenous, then other tests which need to be done are Smith Antibody (Anti-Smith), Anti-dsDNA, and Anti-ssDNA.
If staining pattern is speckled, then presence of dsDNA antibodies confirms lupus to a great extent. If the ANA staining test is equivocal, the ANA should be studied further to confirm lupus diagnosis. Presence of anti-SM (Smith) almost confirms lupus diagnosis, as it is rarely present in other disorders. Anti-Ro and Anti-Sm together almost confirm diagnosis. Please discuss this in detail with your treating doctor. Take care!
The medical advice given should not be considered a substitute for medical care provided by a doctor who can examine you. The advice may not be completely correct for you as the doctor cannot examine you and does not know your complete medical history. Hence this reply to your post should only be considered as a guiding line and you must consult your doctor at the earliest for your medical problem.
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