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Surgery General f208829c

In which of the following the serum C3 not persistently low?

A
Poststreptococcal glomerulonepheritis
B
Membranoproliferative glomerulonephritis
C
Lupus nephritis
D
Glomerulonephritjis related to bacterial endocarditis
High-Yield Explanation
SerumC3 levels are persistently low in membranoproliferative GN, lupus nephritis, and glomerulonephritis related to infective endocarditis. Poststreptoccal glomerulonephritis: SerumC3 Levelsaredepressed within2weeksinalmost90%ofcases.However,C3 levelsreturntonormal within6to 8weeks. Persistentlydepressedlevelsaftehisperiodshouldsuggestanothercausesuchas C3 nephriticfactor (membranoprolif-erativeglomerulonephritis)

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