C4 glomerulopathy laboratory tests

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Ali Poyan Mehr, M.D. [2]; Associate Editor(s)-in-Chief: Olufunmilola Olubukola M.D.[3]

Overview

Laboratory findings consistent with the diagnosis of C4 glomerulopathy include abnormal urinalysis, abnormal BUN: Creatinine ratio, and abnormal serum C3 and C4 levels.

Laboratory Findings

Laboratory findings consistent with the diagnosis of C4 glomerulopathy include:

• Abnormal urinalysis: proteinuria, hematuria
• Abnormal BUN: Creatinine ratio
• Abnormal urine protein creatinine ratio
• Abnormal serum albumin and creatinine
• Positive serum C4 and C3 levels