The next tests done include Autoantibodies (antinuclear antibody, anti-smooth muscle antibody, antimitochondrial antibody, liver-kidney microsomal antibody) Immunoglobulins Serum transferrin saturation and ferritin Thyroid tests (thyroid-stimulating hormone) Tests for celiac disease (tissue transglutaminase antibody) Alpha-1 antitrypsin level Ceruloplasmin Children and young adults are screened for Wilson disease by measuring the ceruloplasmin level.