16 results
Urine Microscopy and Casts - Image Atlas Key

- Squamous Epithelial Casts
- Transitional Epithelial Cells
- Renal Tubular
Urine Microscopy ... - Granular Casts ... RBC Cast - Fatty ... #Microscopy #Casts ... Key #Clinical #Sediment
Granular & “Muddy Brown” Casts on Urine Microscopy
A. Finely granular cast B. slightly coarser granular cast
Brown” Casts on ... Urine Microscopy ... casts is better ... #Casts #Urine # ... #Nephrology #Sediment
Urine Microscopy - Casts
Acellular Casts
 • Hyaline Casts - Consists of only precipitated Tamm-Horsfell protein without
Urine Microscopy ... ) • Granular Casts ... • RBC Casts - ... #Urine #Microscopy ... #nephrology #interpretation
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
sediment Microscopic ... sediment by microscopy ... (Urinalysis or ... casts → Diagnostic ... #urology #nephrology
Causes of Proteinuria - Differential Diagnosis Algorithm
Persistent Proteinuria >150mg/d protein present on repeat testing including overnight
sediment - WBC/ ... RBC casts ... polyangiitis (GPA) / microscopic ... sediment ... #Proteinuria #Nephrology
Algorithmic Approach to Acute Interstitial Nephritis
When to suspect AIN? (not sensitive)
 • AKI, AKD, rapidly progressive
casts, eosinophiluria ... , microscopic hematuria ... casts/RTE; blend ... sediment • Received ... #Algorithm #nephrology
Urine Microscopy Instructions
1) Spin fresh urine sample (10-15mL) in a centrifuge for 3-5 minutes - Don't
Urine Microscopy ... the remaining sediment ... under lower power (casts ... #Microscopy #Instructions ... #nephrology #diagnosis
Hematuria Workup and Diagnosis Algorithm
 • Confirm hematuria → Urinalysis >3 RBCs/HPF, exclude mimics, repeat testing
Confirm hematuria → Urinalysis ... unilateral flank pain ... casts, dysmorphic ... → Refer to Nephrology ... if cause not identified
Atlas of Urine Microscopy Findings
 • Epithelial cells - Normal
 • Renal tubular cells - Acute
Atlas of Urine Microscopy ... • Red cell casts ... renal disease • Granular ... key #diagnosis #nephrology ... #casts
Urine Microscopy Instructions - How to spin urine

1. Collect a fresh urine sample (5 – 10
Urine Microscopy ... Instructions - ... the better, as casts ... #Urine #Microscopy ... #Nephrology #Preparation