A 25-year-old Lady goes to her physician because she is concerned that she may have systemic lupus erythematosus after hearing a public health announcement on TV while working at grocery store. She has no significant past medical history, and her only medication is occasional ibuprofen. She repos that she has had intermittent oral ulcers and right knee pain. Physical examination shows no evidence of alopecia, skin rash, or joint swellimg. Her blood repos shows that she has a positive ANA at a titer of 1:40, but no other abnormalities. Which of the following statements is true?