Medicine During direct immunofluorescence testing of renal biopsy specimen, lumpy bumby immune deposits are seen with conjugated antibodies against: A IgG, IgM, and IgA B GBM C C3 and C4 D IgE 💡 Explanation During direct immunofluorescence testing of renal biopsy specimen, lumpy bumby immune deposits are seen with conjugated antibodies against: ✓ Correct Answer: A. IgG, IgM, and IgA