Cryoglobulins are elevated in which condition characterized by purpura and glomerulonephritis?

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Prepare for the CMS II Rheumatology E1 Exam with our comprehensive quiz. Study using flashcards and multiple-choice questions, each with hints and explanations. Get ready for success!

Multiple Choice

Cryoglobulins are elevated in which condition characterized by purpura and glomerulonephritis?

Explanation:
Cryoglobulins are abnormal immune complexes that precipitate at cold temperatures and drive small-vessel vasculitis. When this vasculitis affects the skin and kidneys, it produces palpable purpura and immune-complex–mediated glomerulonephritis. That combination is characteristic of cryoglobulinemia. The other listed diseases don’t involve this type of immune complex–driven vasculitis with kidney inflammation, so the finding described aligns with the purpuric, nephritic pattern seen in cryoglobulinemia (often associated with hepatitis C).

Cryoglobulins are abnormal immune complexes that precipitate at cold temperatures and drive small-vessel vasculitis. When this vasculitis affects the skin and kidneys, it produces palpable purpura and immune-complex–mediated glomerulonephritis. That combination is characteristic of cryoglobulinemia. The other listed diseases don’t involve this type of immune complex–driven vasculitis with kidney inflammation, so the finding described aligns with the purpuric, nephritic pattern seen in cryoglobulinemia (often associated with hepatitis C).

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