Autoimmune haemolyticanaemia | Crack AIIMS, NEET 2017 MCQs

Autoimmune haemolyticanaemia is an example of which of the following hypersensitivity disorders? 

A. TypeI
B. TypeII
C. TypeIII
D. TypeIV

Ans. B. Type II Hypersensitivity

Hypersensitivity reactions
Type I Hypersensitivity reactions: IgE Mediated
• Theobald phenomenon
• Prusnitz reaction (PK)
• Casonis Test
• Anaphylaxis
• Local: Asthma, Hay fever, Angloedema, Eczema, Urticaria
Type II Hypersensitivity reactions: IgG or 1gM Mediated
• Grave’s disease (ALSO TYPE V)
• Good Pauster’s Syndrome
• Myasthenia Gravis
• Blood transfusion reactions.
• Immune hemolytic anemia
• Immune Thrombocytopenic purpura

Type III Hypersensitivity reactions: Immune complex mediated
• Arthus reaction
• Serum Sickness
• SLE
• Schiks test
• Post Streptococcal Glomerulonephritis
Type IV Hypersensitivity reactions: Delayed Hypersensitivity
• Tuberculin test
• Lepromin Test
• Contact dermatitis
• Pernicious anemia