Laboratory Question for the Week of March 24, 2025

A pathology lab is performing an immunofluorescent study on a skin biopsy to evaluate immunoglobulin deposits. They’re using fluorescent-tagged antibodies for IgG, IgM, and C3, with examination under fluorescent microscopy. I understand that 88346 would be reported for the initial study, but if they also perform an additional antibody stain for fibrinogen, how would this be reported?

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