11 results
Sulfa Crystals on Urine Microscopy
Sulfa Crystal!  Drug-induced crystalluria is a cause of acute renal failure
Urine Microscopy ... crystalluria is a cause ... of acute renal ... #Urine #Microscopy ... crystalluria #clinical #nephrology
Atlas of Urine Microscopy Findings
 • Epithelial cells - Normal
 • Renal tubular cells - Acute
Atlas of Urine Microscopy ... • Red cell casts ... • White cell casts ... disease • Granular casts ... #casts
Urine Microscopy - Casts
Acellular Casts
 • Hyaline Casts - Consists of only precipitated Tamm-Horsfell protein without
Urine Microscopy ... suggestive of acute ... in a variety of acute ... #Urine #Microscopy ... #nephrology #interpretation
Simplified Approach to Acute Kidney Injury (AKI)
1) IS THIS AN EMERGENCY? 
Is there a dialysis indication
PROBLEM ~80% of AKI cases ... IMPROVEMENT If the urine ... Assess UA w/ microscopy ... for WBCs, RBCs, casts ... , crystals, protein
Causes of Acute Kidney Injury (AKI) - Differential Diagnosis Algorithm
Acute Kidney Injury (AKI) - Acute increase
Causes of Acute ... Injury (AKI) - Differential ... Epithelial cell casts ... myeloma) • Urate crystals ... polyangiitis /microscopic
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
Hematuria - Differential ... hematuria: - RBC casts ... microscopic and ... #Hematuria #Differential ... #urology #nephrology
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 ... are seen in acute ... 34t5DgJ #Urinary #Casts
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 ... #Proteinuria #Nephrology ... #Differential #
Urinalysis & Urine Sodium 
Theophilus Protospatharius, a seventh-century physician who wrote the first manuscript focused exclusively
Microscopic exam ... • Crystals ... • Urinary casts ... Acute Kidney Injury ... #UNa #casts #glucosuria
Acute Kidney Injury - AKI Workup Algorithm and Differential Diagnosis
Baseline Investigations: full blood count with differential,
Acute Kidney Injury ... , urine microscopy ... osmolarity If cause ... cardiac imaging #Acute ... #causes