29 results
Causes of Proteinuria - Differential Diagnosis Algorithm
Persistent Proteinuria >150mg/d protein present on repeat testing including overnight
Causes of Proteinuria ... - Differential ... sediment - WBC/RBC casts ... polyangiitis (GPA) / microscopic ... #Nephrology #Differential
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
Hematuria - Differential ... hematuria: - RBC casts ... - Proteinuria ... #urology #nephrology ... blood
Atlas of Urine Microscopy Findings
 • Epithelial cells - Normal
 • Renal tubular cells - Acute
Atlas of Urine Microscopy ... • Red cell casts ... • White cell casts ... key #diagnosis #nephrology ... #casts
Rouleaux in urine sediment - Urine Microscopy
Rouleaux in urine sediment. As the finding in the blood
Microscopy Rouleaux ... finding in the blood ... smears, it is caused ... #sediment #Microscopy ... #clinical #nephrology
Causes of Hematuria - Differential Diagnosis Algorithm
Red blood cells on urine microscopy. Must exclude false positives
Algorithm Red blood ... cells on urine ... microscopy. ... RBCs and/or RBC casts ... nephrotic range) proteinuria
Hematuria Workup and Diagnosis Algorithm
 • Confirm hematuria → Urinalysis >3 RBCs/HPF, exclude mimics, repeat testing
glomerular bleeding (proteinuria ... , RBC casts, dysmorphic ... → Refer to Nephrology ... if cause not identified ... Workup #urology #blood
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 ... 34t5DgJ #Urinary #Casts ... #Differential #
Examples of varying granular and granular/waxy mixed casts: 
A: coarse granular/broad-waxy (and surrounding white blood cells);
granular/waxy mixed casts ... surrounding white blood ... cells); B: light ... Granular #MuddyBrown #Casts ... #Urine #Microscopy
Urinalysis & Urine Sodium 
Theophilus Protospatharius, a seventh-century physician who wrote the first manuscript focused exclusively
proteins, documenting proteinuria ... Microscopic exam ... • Red blood cells ... • Urinary casts ... #UNa #casts #glucosuria
Acute Kidney Injury - Differential Diagnosis Framework
PRERENAL:
 - Intrarenal vasoconstriction-hemodynamically mediated
 - Systemic vasodilation
 - Volume
cells/proteinuria ... cell casts on UA ... renal tubular cell casts ... or pigmented casts ... treating underlying cause