24 results
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
Immune mediated injury ... basement membrane disease ... : - RBC casts ... of glomerular disease ... #nephrology #renal
Atlas of Urine Microscopy Findings
 • Epithelial cells - Normal
 • Renal tubular cells - Acute
Acute tubular injury ... - Diagnostic of ... renal disease ... acute tubular injury ... #nephrology #casts
Algorithm and Differential Diagnosis of Macroscopic Hematuria
Important Historical Elements:
- Painless: suggests malignancy
- Painful: suggests calculi/infection
- Urinalysis:
and Differential Diagnosis ... RBC’s, RBC/WBC casts ... suggest intrinsic renal ... disease - Timing ... #EM #IM #Urology
Hematuria Workup and Diagnosis Algorithm
 • Confirm hematuria → Urinalysis >3 RBCs/HPF, exclude mimics, repeat testing
proteinuria, RBC casts ... → Refer to Nephrology ... for renal biopsy ... cystoscopy • Refer to Nephrology ... identified by UW IM
Causes of Hematuria - Differential Diagnosis Algorithm
Red blood cells on urine microscopy. Must exclude false positives
- Differential Diagnosis ... cells on urine microscopy ... RBCs and/or RBC casts ... disease • ... • Pauci-immune disease
Summary of characteristic abnormalities of selected glomerular diseases
Light Microscopy (LM) - Immunofluorescence Microscopy (IM) - Electron
(IM) - Electron ... Microscopy (EM) ... Haematuria/nephritis ... #nephrology #pathology ... comparison #table #diagnosis
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Dyspnea, Fever, Hematuria ... Differential Diagnosis ... polyangiitis, Microscopic ... anti-ANCA ab, anti-GBM ... #nephrology
Causes of acute kidney injury (AKI). AKI is classified into pre-renal, renal, and post-renal causes. Renal
of acute kidney injury ... and interstitial disease ... GBM, Glomerular ... #Diagnosis #AKI ... Causes #Sites #Nephrology
Glomerular Diseases - Nephritic and Nephrotic Syndromes

Nephritic syndrome—due to GBM disruption. 
Hypertension. t BUN and creatinine.
Glomerular Diseases ... syndrome—due to GBM ... hematuria. ... #Proteinuria #Nephrology ... #Diagnosis
Acute Kidney Injury (AKI) - Differential Diagnosis Framework

PRE-Renal AKI:
 • Hypovolemia
 • Congestion
 • Medications
 •
Acute Kidney Injury ... - Differential Diagnosis ... Immune-complex disease ... , Anti-GBM • Tubular ... #nephrology