A 30-year-old male is having difficulty breathing and has been spitting blood. He reports that he began experiencing this reaction after cleaning his pigeons' cages. Testing reveals he is suffering from allergic alveolitis. Which of the following is he experiencing?
A) Serum sickness
B) Raynaud phenomenon
C) Antibody-dependent cell-mediated cytotoxicity
D) Arthus reaction

Question

Quizplus · Accepted Answer

The patient is experiencing an Arthus reaction, which is a type of hypersensitivity reaction (Type III) that occurs when immune complexes are deposited in tissues, leading to inflammation. This is consistent with allergic alveolitis, also known as hypersensitivity pneumonitis, which can occur after exposure to bird droppings.

A 30-Year-Old Male Is Having Difficulty Breathing and Has Been