Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Wegener's granulomatosis laboratory findings
Introduction
Overview
Overview
Laboratory findings consistent with the diagnosis of Granulomatosis with polyangiitis include, anti-neutrophil cytoplasmic antibody, elevated blood urea nitrogen, elevated creatinine serum, erythrocyte sedimentation rate, C reactive protein, proteinuria, microscopic hematuria, and red blood casts.
Laboratory Findings
Laboratory Findings
Laboratory findings consistent with the diagnosis of Granulomatosis with polyangiitis include, anti-neutrophil cytoplasmic antibody, elevated blood urea nitrogen, elevated creatinine serum, erythrocyte sedimentation rate, C reactive protein, proteinuria, microscopic hematuria, and red blood casts.
Blood Work-Up
- Complete blood count
- Serum Creatinine
- Blood urea nitrogen
- Anti-neutrophil cytoplasmic antibody test
- Anti PR3
Urinalysis
- Proteinuria
- Microscopic hematuria
- Red cell casts
Renal Biopsy
Renal biopsy is the gold standard in establishing Granulomatosis with polyangiitis.[1] Renal biopsy reveals under electron microscopy:
- Subendothelial edema
- Microthrombosis, and
- Degranulation of neutrophils.
Under light microscopy, necrotizing and crescentic glomerulonephritis is seen. [2]
References
References
- ↑ Berden AE, Ferrario F, Hagen EC, Jayne DR, Jennette JC, Joh K; et al. (2010). “Histopathologic classification of ANCA-associated glomerulonephritis”. J Am Soc Nephrol. 21 (10): 1628–36. doi:10.1681/ASN.2010050477. PMID 20616173.
- ↑ Bajema IM, Hagen EC, Ferrario F, de Heer E, Bruijn JA (2001). “Immunopathological aspects of systemic vasculitis”. Springer Semin Immunopathol. 23 (3): 253–65. PMID 11591101.
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Ali Poyan Mehr, M.D. [2]Associate Editor(s)-in-Chief: Krzysztof Wierzbicki M.D. [3]Amandeep Singh M.D.[4]