17 results
Sulfa Crystals on Urine Microscopy
Sulfa Crystal!  Drug-induced crystalluria is a cause of acute renal failure
Urine Microscopy ... is a cause of acute ... renal failure that ... #Urine #Microscopy ... crystalluria #clinical #nephrology
Atlas of Urine Microscopy Findings
 • Epithelial cells - Normal
 • Renal tubular cells - Acute
Atlas of Urine Microscopy ... tubular cells - Acute ... protein indicating acute ... - Some crystals ... key #diagnosis #nephrology
Hematuria Workup and Diagnosis Algorithm
 • Confirm hematuria → Urinalysis >3 RBCs/HPF, exclude mimics, repeat testing
repeat testing • Acute ... WBCs, or urine ... proteinuria, RBC casts ... for renal biopsy ... #blood #urine
Urinary Casts and Disease Associations
Hyaline - May be nonspecific; seen in normal individuals or during severe
and concentrated urine ... are seen in acute ... disease Red blood ... tubulointerstitial nephritis, renal ... #Differential #Microscopy
Acute Kidney Injury - AKI Workup Algorithm and Differential Diagnosis
Baseline Investigations: full blood count with differential,
Acute Kidney Injury ... Investigations: full blood ... microscopy / urinary ... screen, including blood ... cardiac imaging #Acute
Urine Microscopy - Casts
Acellular Casts
 • Hyaline Casts - Consists of only precipitated Tamm-Horsfell protein without
Urine Microscopy ... suggestive of acute ... non-infectious) - Dr ... #Urine #Microscopy ... #nephrology #interpretation
Urinalysis & Urine Sodium 
Theophilus Protospatharius, a seventh-century physician who wrote the first manuscript focused exclusively
Microscopic exam ... • Crystals ... • Urinary casts ... used with normal renal ... Acute Kidney Injury
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
• 1ml blood/liter ... hematuria: - RBC casts ... Diagnosis #causes #urology ... #nephrology #renal ... #urine #blood
Simplified Approach to Acute Kidney Injury (AKI)
1) IS THIS AN EMERGENCY? 
Is there a dialysis indication
Simplified Approach to Acute ... require urgent nephrology ... IMPROVEMENT If the urine ... Assess UA w/ microscopy ... , crystals, protein
Causes of Acute Kidney Injury (AKI) - Differential Diagnosis Algorithm
Acute Kidney Injury (AKI) - Acute increase
at least 50% Renal ... Epithelial cell casts ... myeloma) • Urate crystals ... polyangiitis /microscopic ... #KidneyInjury #Nephrology