What should I do if my child has a positive ANA test?
Your physician or pediatric rheumatologist will interpret the ANA test in the context of other laboratory studies and your child’s history and physical examination to determine if your child has any sign of ANA-related rheumatologic disease. Further testing will be done if the doctor suspects your child has a particular disease.
ANA testing has a high "false positive" rate, meaning that many people who don't have an autoimmune disease can have higher ANA levels. It is important to speak with your child’s pediatrician or pediatric rheumatologist to determine if a positive ANA result is meaningful or if it relates to your child’s symptoms.