Each lab has its own time line for reporting the results of tests. Since your ANA was positive, doctors now need to run other tests to see if you have an auto-immune disorder and to try to ascertain which one it might be.
Most likely, he ordered other autoantiboidies tests. Autoantibodies are a group of antibodies (immune proteins) that mistakenly target and damage specific tissues or organs of the body. The type of autoimmune disorder or disease that occurs and the amount of destruction done to the body depends on which systems or organs are targeted by the autoantibodies. Disorders caused by autoantibodies that primarily affect a single organ, such as the thyroid in Graves’ disease or Hashimoto’s thyroiditis, are often the easiest to diagnose as they frequently present with organ-related symptoms. However, disorders due to systemic autoantibodies (affects multiple organs or systems in the body, as does Lupus) can be much more difficult. To complicate the situation, some diseases, like Lupus, may have more than one autoantibody, and/or they may have more than one autoimmune disorder, and/or have an autoimmune disorder without a detectable level of an autoantibody. This may make it difficult for the doctor to identify the prime cause and arrive at a diagnosis.
Other laboratory tests associated with presence of inflammation, such as erythrocyte sedimentation rate: also known as Sed rate, Sedimentation rate (ESR) and/or C-reactive protein (CRP) may also be ordered. In diseases that cause inflammation, the levels of these tests are usually high.
You doctor will have to use the results of all of these tests, as well as your symptoms and your medical history before he will be able to make any type of diagnosis.
I hope that I've answered your question. Please let me know if you need anything further.
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