(The ANA test is not used to diagnose JIA. Therefore, a positive ANA test does not equal a diagnosis of lupus or any. The ANA test is also used as a prognostic marker (a way of telling ahead of time) in children with juvenile idiopathic arthritis (JIA). Causes of a false-positive ANA include infection, malignancy, and certain medications. No biliary lesions, granulomas, or prominent changes suggestive of another diseaseĪIH = autoimmune hepatitis alpha-1 AT = alpha-1 antitrypsin ANA = antinuclear antibodies SMA = smooth muscle antibodies anti-LKM1 = antibodies to liver/kidney microsome type 1 AMA = antimitochondrial antibodies IgG = serum immunoglobulin G level AST = aspartate aminotransferase ALT = alanine aminotransferase An ANA test should not be ordered as a screening test for non-specific complaints such as musculoskeletal pain, fever or rash. Globulin, gamma-globulin or IgG level ≥ 1.5 times upper limit of normalĪNA, SMA, or anti-LKM1 ≥ 1:80 in adults and ≥ 1:20 in children no AMAĪNA, SMA or anti-LKM1 ≥ 1:40 in adults other autoantibodies No active hepatitis A, B, and/or C infection Nondiagnostic iron and/or ferritin changes Nondiagnostic ceruloplasmin/copper levels International Criteria for the Diagnosis of Autoimmune Hepatitis

Ana screen marker positive