Hypersensitivity Reactions

Exam Cram

• Type 1: IgE mediated from mast cell degranulation

  • • • Atopy, urticaria

• Type 2: antibody - cell antigen complexes

• Type 3: antibody- antibody complexes

  • • • HSP

• Type 4: delayed T cell hypersensitivity

  • • • Transplant rejection 

Resources and References

Written in 2025