Immunology USMLE Step 1 Practice Question
An investigator is studying the immunologic response to a Staphylococcus aureus toxin in a mouse model. Fourteen days after injecting mice with this toxin, he isolates antibodies against neutrophil proteinase 3 in their serum. A patient with high concentrations of these antibodies would most likely present with which of the following clinical features?
Answer choices
- APolyneuropathy and melena
- BAsthma attacks and allergic sinusitis
- CVisual impairment and jaw claudication
- DNasal mucosal ulcerations and hematuriaCorrect answer
- EMigratory thrombophlebitis and digital ulcers
- FGenital ulcers and anterior uveitis
See the full explanation
Get the correct-answer rationale, why each distractor is wrong, the underlying mechanism, and high-yield associations ā plus adaptive practice that targets your weak areas ā with a free MedBoardPRO account.