Nephritic syndromes Quiz: Ace Your Exams

Get ready to dominate your medical and nursing exams by using our dynamic quizzes to elevate your knowledge and increase your confidence. Whether you're gearing up for the USMLE®, COMLEX®, or your next in-class assessment, Osmosis quizzes tackle key topics in pathology, diagnostics, and treatment approaches. By honing in on clinical readiness and decision-making, we make sure the knowledge you gain empowers you both in the classroom and in real-world practice. Jump in and supercharge your exam prep!

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A 35-year-old man is brought to office because of bumps on his arms and blood in his urine for the past 2 weeks. The bumps are non-pruritic but painful to touch. He has not had a recent upper respiratory infection, hemoptysis, or facial rashes. Past medical history is significant for allergic rhinitis and poorly-controlled asthma, diagnosed 10 years ago. He takes doses of inhaled corticosteroids. Vitals are within normal limits. Physical examination shows periorbital edema and a transverse nasal crease. Subcutaneous nodules are noted on the extensor surface of the arms and forearms and are tender to palpation. Laboratory evaluation is shown:

Renal biopsy findings show glomerular crescent formation. Which of the following additional laboratory findings is associated with this condition?

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