8 results
Atlas of Urine Microscopy Findings
 • Epithelial cells - Normal
 • Renal tubular cells - Acute
Atlas of Urine Microscopy ... • Red cell casts ... • White cell casts ... #Atlas #key #diagnosis ... #nephrology #casts
Urinary Casts and Disease Associations
Hyaline - May be nonspecific; seen in normal individuals or during severe
Urinary Casts and ... heme-granular casts ... tubulointerstitial nephritis ... tuberculosis Fatty - Nephrotic ... #Diagnosis #Nephrology
Causes of Hematuria - Differential Diagnosis Algorithm
Red blood cells on urine microscopy. Must exclude false positives
Causes of Hematuria ... Algorithm Red blood ... casts) - Isolated ... • Hereditary nephritis ... and >3.5g/day (nephrotic
Urine Microscopy - Casts
Acellular Casts
 • Hyaline Casts - Consists of only precipitated Tamm-Horsfell protein without
suggestive of nephrotic ... • RBC Casts - ... glomerulonephritis • WBC ... #nephrology #interpretation ... #diagnosis
Algorithmic Approach to Acute Interstitial Nephritis
When to suspect AIN? (not sensitive)
 • AKI, AKD, rapidly progressive
Interstitial Nephritis ... casts, eosinophiluria ... proteinuria, granular casts ... #Interstitial #Nephritis ... #diagnosis
Hematuria Workup and Diagnosis Algorithm
 • Confirm hematuria → Urinalysis >3 RBCs/HPF, exclude mimics, repeat testing
repeat testing • Acute ... • Evidence of glomerular ... casts, dysmorphic ... if cause not identified ... #urology #blood
Simplified Approach to Acute Kidney Injury (AKI)
1) IS THIS AN EMERGENCY? 
Is there a dialysis indication
PROBLEM ~80% of AKI cases ... Assess UA w/ microscopy ... for WBCs, RBCs, ... casts, crystals ... #diagnosis #nephrology
Acute Kidney Injury - AKI Workup Algorithm and Differential Diagnosis
Baseline Investigations: full blood count with differential,
Acute Kidney Injury ... - AKI Workup Algorithm ... dipstick, urine microscopy ... • Interstitial nephritis ... #nephrology #causes