13 results
Atlas of Urine Microscopy Findings
 • Epithelial cells - Normal
 • Renal tubular cells - Acute
Atlas of Urine Microscopy ... Acute tubular injury ... also be seen if urine ... acute tubular injury ... • Crystals -
Acute Kidney Injury - Differential Diagnosis Framework
PRERENAL:
 - Intrarenal vasoconstriction-hemodynamically mediated
 - Systemic vasodilation
 - Volume
Acute Kidney Injury ... - Differential ... Obstruction to urinary ... Intrarenal: stones, crystals ... #AKI #Differential
Urine Microscopy - Urinary Sediment Examination Instructions
Preparation of the urine for microscopic examination:
 • Clean catch
Urine Microscopy ... - Urinary Sediment ... up by cells or casts ... protein matrix of casts ... #Microscopy #Urinary
Urinalysis & Urine Sodium 
Theophilus Protospatharius, a seventh-century physician who wrote the first manuscript focused exclusively
Microscopic exam ... • Crystals ... • Urinary casts ... Acute Kidney Injury ... #Urinalysis #crystals
Urinary Casts and Disease Associations
Hyaline - May be nonspecific; seen in normal individuals or during severe
Urinary Casts and ... and concentrated urine ... White blood cell - Urinary ... #Casts #Differential ... #Microscopy #Diagnosis
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
Hematuria - Differential ... clots ➔ Lower Urinary ... Immune mediated injury ... hematuria: - RBC casts ... Upper and Lower urinary
Simplified Approach to Acute Kidney Injury (AKI)
1) IS THIS AN EMERGENCY? 
Is there a dialysis indication
to Acute Kidney Injury ... circulating volume, Urinary ... IMPROVEMENT If the urine ... Assess UA w/ microscopy ... , crystals, protein
Acute Kidney Injury - AKI Workup Algorithm and Differential Diagnosis
Baseline Investigations: full blood count with differential,
Acute Kidney Injury ... , urine microscopy ... / urinary sediment ... calcium Optional: urinary ... Acute #Kidney #Injury
Causes of Acute Kidney Injury (AKI) - Differential Diagnosis Algorithm
Acute Kidney Injury (AKI) - Acute increase
of Acute Kidney Injury ... (AKI) - Differential ... Acute Kidney Injury ... myeloma) • Urate crystals ... polyangiitis /microscopic
Medications causing Acute Kidney Injury (AKI)
Prerenal:
 • Dehydration: Diuretics
 • Altered intrarenal autoregulation: ACEIs / ARBs,
causing Acute Kidney Injury ... Bactrim), NSAIDs • Crystal ... contraction, and/or ↑ urinary ... sphincter tone: • Opiates ... #pharmacology #differential