Autoantibodies

Question 1

Anti-ACh receptor

Answer 1

Myasthenia gravis

Question 2

Anti-basement membrane

Answer 2

Goodpasteure syndrome

Question 3

Anticardiolipin, lupus anticoagulant

Answer 3

SLE, antiphospholipid syndrome

Question 4

Anticentromere

Answer 4

Limited scleroderma (CREST syndrome)

Question 5

Anti-desmosome (anti-desmoglein)

Answer 5

Pemphigus vulgaris

Question 6

Anti-dsDNA, anti-Smith

Answer 6

SLE

Question 7

Anti-glutamic acid decarboxylase (GAD-65)

Answer 7

Type 1 diabetes mellitus

Question 8

Antihemidesmosomes

Answer 8

Bullous pemphigoid

Question 9

Anti-histone

Answer 9

Drug-induced lupus

Question 10

Anti-Jo-1 (anti-histidyl-tRNA synthetase), anti-SRP, anti-Mi-2

Answer 10

Polymyositis, dermatomyositis

Question 11

Antimicrosomal, antithyroglobulin

Answer 11

Hashimoto thyroiditis

Question 12

Antimitochondrial

Answer 12

Primary biliary cirrhosis

Question 13

Antinuclear antibodies

Answer 13

SLE, sjogren synd, scleroderma, polymyositis, dermatomyositis, RA, JIA, MCID

Question 14

Antiparietal cell

Answer 14

Pernicious anemia

Question 15

Anti-Scl-70 (anti-DNA topoisomerase I)

Answer 15

Scleroderma (diffuse)

Question 16

Anti-smooth muscle

Answer 16

Autoimmune hepatitis

Question 17

Anti-SSA, anti-SSB (anti-Ro, anti-La)

Answer 17

Sjogren syndrome

Question 18

Anti-TSH receptor

Answer 18

Graces disease

Question 19

Anti-U1 RNP (ribronucleoprotein)

Answer 19

Mixed connective tissue disorder

Question 20

IgA anti-endomysial, IgA anti-tissue transglutaminase

Answer 20

Celiac disease

Question 21

MPO-ANCA/p-ANCA

Answer 21

Microscopic polyangiitis, eosinophilic granulomatosis with polyangitis (Churg-Strauss syndrome)

Question 22

PR3-ANCA/c-ANCA

Answer 22

Granulomatosis with polyangiitis (Wegener)

Question 23

Rheumatoid factor (IgM antibody that targets IgG Fc region), anti-CCP (more specific)

Answer 23

Rheumatoid arthritis