29 results
Atlas of Urine Microscopy Findings
 • Epithelial cells - Normal
 • Renal tubular cells - Acute
tubular cells - Acute ... tubular injury ... - Renal infection ... tubular injury ... key #diagnosis #nephrology
Acute Kidney Injury - Classification
Prerenal:
 • Dehydration
 • Heart failure (a.k.a. cardiorenal syndrome)
 • Liver failure
Acute Kidney Injury ... - Post-infectious ... necrosis (causes ... Urinary tract infection ... #Kidney #Injury
Simplified Approach to Acute Kidney Injury (AKI)
1) IS THIS AN EMERGENCY? 
Is there a dialysis indication
Simplified Approach to Acute ... Kidney Injury ( ... CONSIDER INTRINSIC CAUSES ... Assess UA w/ microscopy ... for WBCs, RBCs,
Causes of Hematuria - Differential Diagnosis Algorithm
Red blood cells on urine microscopy. Must exclude false positives
Causes of Hematuria ... cells on urine microscopy ... • Thin GBM disease ... • Pauci-immune disease ... glomerulonephritis • Post-Infectious
Common causes of Acute Kidney Injury AKI - Differential Diagnosis
HEMODYNAMIC
 • Cardiac failure: Impaired forward flow,
Common causes of ... Acute Kidney Injury ... • Primary GNs: Disease ... Post-infectious ... Tubular Injury/
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
Immune mediated injury ... basement membrane disease ... deposits - Post-infectious ... of glomerular disease ... #urology #nephrology
Causes of Acute Kidney Injury (AKI) - Differential Diagnosis Algorithm
Acute Kidney Injury (AKI) - Acute increase
Causes of Acute ... Kidney Injury (AKI ... Kidney Injury ( ... polyangiitis /microscopic ... allopurinol, PPI) • Infections
Causes of Acute Kidney Injury ( AKI ) - Prerenal, Renal, and Postrenal

PRE-RENAL 
Impaired perfusion: 
•
Causes of Acute ... Kidney Injury ( ... • Inflammatory disease ... • Infection ... #Kidney #Injury
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 ... chronic kidney diseases ... or non-infectious
Urinary Casts and Disease Associations
Hyaline - May be nonspecific; seen in normal individuals or during severe
Disease Associations ... are seen in acute ... Advanced kidney disease ... Urinary tract infections ... #Differential #Microscopy