32 results
Urine Microscopy - Casts
Acellular Casts
 • Hyaline Casts - Consists of only precipitated Tamm-Horsfell protein without
Urine Microscopy ... can be either infectious ... or non-infectious ... #Urine #Microscopy ... #nephrology #interpretation
Atlas of Urine Microscopy Findings
 • Epithelial cells - Normal
 • Renal tubular cells - Acute
• Red cell casts ... • White cell casts ... • Hyaline casts ... key #diagnosis #nephrology ... #casts
Urinary Casts and Disease Associations
Hyaline - May be nonspecific; seen in normal individuals or during severe
Urinary Casts and ... breakdown of cellular casts ... heme-granular casts ... edgarvlermamd - Nephrology ... #Nephrology
Glomerulonephritis - Differential Diagnosis Framework
ANCA:
 • C-ANCA: GPA (Wegener's)
 • P-ANCA: Microscopic Polyangiitis, Eosinophilic GPA (Churg
Wegener's) • P-ANCA: Microscopic ... Strauss) Anti-GBM ... Mediated: • ↓C3: Infection-Related ... #diagnosis #nephrology ... #causes
Causes of Acute Kidney Injury (AKI) - Differential Diagnosis Algorithm
Acute Kidney Injury (AKI) - Acute increase
Injury (AKI) - Differential ... Epithelial cell casts ... polyangiitis /microscopic ... allopurinol, PPI) • Infections ... #KidneyInjury #Nephrology
Causes of Proteinuria - Differential Diagnosis Algorithm
Persistent Proteinuria >150mg/d protein present on repeat testing including overnight
- Differential ... sediment - WBC/RBC casts ... polyangiitis (GPA) / microscopic ... HSP • Post-infectious ... #Proteinuria #Nephrology
Algorithm and Differential Diagnosis of Macroscopic Hematuria
Important Historical Elements:
- Painless: suggests malignancy
- Painful: suggests calculi/infection
- Urinalysis:
Algorithm and Differential ... suggests calculi/infection ... RBC’s, RBC/WBC casts ... prostatic) #Diagnosis #EM ... #IM #Urology #Hematuria
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
Hematuria - Differential ... deposits - Post-infectious ... hematuria: - RBC casts ... Hematuria: • Infection ... #urology #nephrology
Causes of Hematuria - Differential Diagnosis Algorithm
Red blood cells on urine microscopy. Must exclude false positives
- Differential ... cells on urine microscopy ... RBCs and/or RBC casts ... with polyangiitis/microscopic ... glomerulonephritis • Post-Infectious
Generalized Weakness - Differential Diagnosis Framework
"l feel weak":
 • Infectious: Influenza, EBV, PNA, Bacteremia, Sepsis
 •
Generalized Weakness - Differential ... : Influenza, EBV ... Generalized #Weakness #Differential ... #Diagnosis #causes ... #neurology