
🧠 Type I Hypersensitivity Reactions for USMLE Step 1: Mechanism, Triggers, and Clinical Vignettes
Understand Type I hypersensitivity reactions for Step 1. Learn the IgE-mediated mechanism, mast cell degranulation, and key clinical examples like anaphylaxis and urticaria.

🧠 Type I Hypersensitivity Reactions: Fast, Furious, and Fully Testable
Break down Type I hypersensitivity reactions with USMLE-ready visuals, mechanisms, and high-yield triggers like anaphylaxis, IgE, and mast cell activation.