23 results
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
• 1ml blood/liter ... sediment Microscopic ... microscopic and ... #urology #nephrology ... blood
Acute Kidney Injury - AKI Workup Algorithm and Differential Diagnosis
Baseline Investigations: full blood count with differential,
Acute Kidney Injury ... Investigations: full blood ... microscopy / urinary ... osmolarity If cause ... #causes
Rouleaux in urine sediment - Urine Microscopy
Rouleaux in urine sediment. As the finding in the blood
Microscopy Rouleaux ... finding in the blood ... smears, it is caused ... #sediment #Microscopy ... #clinical #nephrology
Sulfa Crystals on Urine Microscopy
Sulfa Crystal!  Drug-induced crystalluria is a cause of acute renal failure
Microscopy Sulfa ... crystalluria is a cause ... of acute renal ... #Microscopy #crystalluria ... #clinical #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 ... if cause not identified ... #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 ... Glomerulonephritis White blood ... #Differential #Microscopy
Atlas of Urine Microscopy Findings
 • Epithelial cells - Normal
 • Renal tubular cells - Acute
Atlas of Urine Microscopy ... tubular cells - Acute ... also be seen if urine ... protein indicating acute ... key #diagnosis #nephrology
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
Simplified Approach to Acute ... IMPROVEMENT If the urine ... CONSIDER INTRINSIC CAUSES ... Assess UA w/ microscopy ... LorinskyMD #AKI #Acute
Urinalysis & Urine Sodium 
Theophilus Protospatharius, a seventh-century physician who wrote the first manuscript focused exclusively
Microscopic exam ... • Red blood cells ... : • White blood ... Acute Kidney Injury ... Acute Tubular Necrosis