Often, when antibodies to cytoplasmic antigens are detected - this is prior to (or indicative of) a finding of positive ANA. This suggests, to the doctors, that (as Tgal mentioned), there may be some type of AI issue developing. ANA is NOT an indicator of Lupus. It is one, of many, tests run in order to determine if the issue is Lupus (or another AI or connective tissue disease).
Many people have a positive ANA without having the disease. It is just that many people with Lupus do have a positive ANA. There are a battery of tests that doctors will run in order to determine which (if any) Auto-Immune disease you may have. There really is no test that you should as for, especially given the fact that you have been diagnosed with Lupus. The other statements you provided were suggestions of tests that should be considered if further indicators of AI disease was found.
ANA titers and patterns can vary between laboratory testing sites because each lab may use a different method. However, are the commonly recognized patterns:
As has been mentioned, ANAs are found in patients who have various AI diseases, but not only autoimmune diseases. ANAs can be found also in patients with infections, cancer, lung disease, gastrointestinal diseases, hormonal diseases, blood diseases, skin diseases, and in elderly people or people with a family history of rheumatic disease. ANAs are actually found in about 5% of the normal population.
- Homogeneous - total nuclear fluorescence due to antibody directed against nucleoprotein. Common in SLE (lupus).
- Peripheral - fluorescence occurs at edges of nucleus in a shaggy appearance. Anti-DNA antibodies cause this pattern. Also common in SLE (lupus).
- Speckled - results from antibody directed against different nuclear antigens.
- Nucleolar - results from antibody directed against a specific RNA configuration of the nucleolus or antibody specific for proteins necessary for maturation of nucleolar RNA. Seen in patients with systemic sclerosis.
Again....the ANA results are just one factor in diagnosing, and must be considered together with your clinical symptoms and other diagnostic tests.
I hope that this has been helpful...
Peace and Blessings
Look For The Good and Praise It!