25 results
Atlas of Urine Microscopy Findings
 • Epithelial cells - Normal
 • Renal tubular cells - Acute
• Red cell casts ... • White cell casts ... infection • Hyaline casts ... disease • Granular casts ... diagnosis #nephrology #casts
Mixed Cellular Casts on Urine Microscopy

Degenerating mixed cellular cast - brightfield, unstained - from patient with
Mixed Cellular Casts ... on Urine Microscopy ... unstained - from patient ... #Cellular #Casts ... clinical #Urine #Microscopy
Crystal cast in patient with AKI and TLS on Urine Microscopy

Randy Luciano MD, PhD @RandyLucianoMD

#TLS #Crystal
Crystal cast in ... patient with AKI ... and TLS on Urine Microscopy ... #casts #crystalluria ... #Urine #Microscopy
Simplified Approach to Acute Kidney Injury (AKI)
1) IS THIS AN EMERGENCY? 
Is there a dialysis indication
PHYSICAL Assess if patient ... PROBLEM ~80% of AKI cases ... 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
Differential Diagnosis Algorithm ... Epithelial cell casts ... Obstruction • Cast ... myeloma) • Urate crystals ... polyangiitis /microscopic
Algorithmic Approach to Acute Interstitial Nephritis
When to suspect AIN? (not sensitive)
 • AKI, AKD, rapidly progressive
Algorithmic Approach ... sterile pyuria, WBC casts ... eosinophiluria, microscopic ... proteinuria, granular casts ... Nephritis #AIN #Algorithm
Urine Microscopy - Urinary Sediment Examination Instructions
Preparation of the urine for microscopic examination:
 • Clean catch
up by cells or casts ... Ill stain) and crystals ... RBC's, lipids, crystals ... protein matrix of casts ... identification of lipids, crystals
Causes of Hematuria - Differential Diagnosis Algorithm
Red blood cells on urine microscopy. Must exclude false positives
Differential Diagnosis Algorithm ... cells on urine microscopy ... RBCs and/or RBC casts ... with polyangiitis/microscopic ... #Causes
Causes of Proteinuria - Differential Diagnosis Algorithm
Persistent Proteinuria >150mg/d protein present on repeat testing including overnight
Differential Diagnosis Algorithm ... sediment - WBC/RBC casts ... polyangiitis (GPA) / microscopic ... Differential #Diagnosis #Algorithm ... #Causes
Causes of Dysuria - Differential Diagnosis Algorithm
Pyuria - Leukocytes on Dipstick/Microscopy
 - Bacteriuria & Hematuria -
Differential Diagnosis Algorithm ... Leukocytes on Dipstick/Microscopy ... Pyelonephritis - WBC Casts ... Leukocytes on Dipstick/Microscopy ... #Causes