Beat The Heat SAVE 25% NOW
Medicine (MD/DO)
Hypersensitivity Reactions
Hypersensitivity Type III

Master Hypersensitivity Type III with Picmonic for Medicine

With Picmonic, facts become pictures. We've taken what the science shows - image mnemonics work - but we've boosted the effectiveness by building and associating memorable characters, interesting audio stories, and built-in quizzing.

Hypersensitivity Type III

Recommended Picmonics

picmonic thumbnail
Hypersensitivity Type I
picmonic thumbnail
Hypersensitivity Type II
picmonic thumbnail
Hypersensitivity Type IV
picmonic thumbnail
Anaphylaxis Intervention

Hypersensitivity Type III

Hiker-sensitive-crying on (3) Tree
Hypersensitivity Type III reaction occurs due to circulating antigen-antibody immune complexes that deposit in various locations (especially vessel walls) and cause inflammation. It can result in systemic (i.e. Serum sickness) or local immune complex disease (i.e. Arthus reaction).
Immune Complex

Antibody circulating within blood vessels attaches to antigen forming circulating immune complexes that then deposit in various locations.

Antigen-antibody (IgG) complex activates complement
Ant-gem Ant-tie-body and Gold Globulin-goblin Hugging and Complimenting

These immune complexes activate complement via antibody binding to Fc receptors of leukocytes. This results in inflammation.

Neutrophils release lysozomal enzymes
Nude-trojan Spraying Lysos-bottle

Inflammation occurs due to neutrophil release of lysosomal enzymes and reactive oxygen intermediates.

Arthus Reaction
Artist Painting

This is an example of a local immune complex disease that usually occurs in the skin.

Serum Sickness
Syrup sickness

This is an example of systemic immune complex disease that occurs due to a patient receiving non-human animal serum in significant amounts.

Systemic Lupus Erythematosus (SLE)

This is a chronic type of serum sickness that occurs due to antibody formation against nuclear antigens.


Take the Hypersensitivity Type III Quiz

Picmonic's rapid review multiple-choice quiz allows you to assess your knowledge.

It's worth every penny

Our Story Mnemonics Increase Mastery and Retention

Memorize facts with phonetic mnemonics

Unforgettable characters with concise but impactful videos (2-4 min each)

Memorize facts with phonetic mnemonics

Ace Your Medicine (MD/DO) Classes & Exams with Picmonic:

Over 1,910,000 students use Picmonic’s picture mnemonics to improve knowledge, retention, and exam performance.

Choose the #1 Medicine (MD/DO) student study app.

Picmonic for Medicine (MD/DO) covers information that is relevant to your entire Medicine (MD/DO) education. Whether you’re studying for your classes or getting ready to conquer the USMLE Step 1, USMLE Step 2 CK, COMLEX Level 1, or COMLEX Level 2, we’re here to help.

Works better than traditional Medicine (MD/DO) flashcards.

Research shows that students who use Picmonic see a 331% improvement in memory retention and a 50% improvement in test scores.