What does a positive result on the ANA titer mean?

Further testing. A positive ANA may not be significant. First of all why was the test done. If it was done for joint pain it will mean more then if a physiciab did one as a part of an annual physicial. Certainly, we are may be more concerned based on the value but also the pattern of the ana. The titer may mean an autoimmune disease is present based on the complaints, physical exam, and the values of other tests.