system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
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 sera. A patient with high concentrations of these antibodies would most likely present with which of the following clinical features?
assistant
Nasal mucosal ulcerations and hematuria