14 results
Urine Microscopy - Casts
Acellular Casts
 • Hyaline Casts - Consists of only precipitated Tamm-Horsfell protein without
Urine Microscopy ... • RBC Casts - ... glomerulonephritis • WBC ... #Urine #Microscopy ... #nephrology #interpretation
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
Algorithmic Approach to Acute Interstitial Nephritis
When to suspect AIN? (not sensitive)
 • AKI, AKD, rapidly progressive
Algorithmic Approach to Acute ... sterile pyuria, WBC ... casts, eosinophiluria ... , microscopic hematuria ... #Algorithm #nephrology
Hematuria Workup and Diagnosis Algorithm
 • Confirm hematuria → Urinalysis >3 RBCs/HPF, exclude mimics, repeat testing
repeat testing • Acute ... unilateral flank pain ... WBCs, or urine ... casts, dysmorphic ... → Refer to Nephrology
Simplified Approach to Acute Kidney Injury (AKI)
1) IS THIS AN EMERGENCY? 
Is there a dialysis indication
Simplified Approach to Acute ... e.g AEIOU ) or anuria ... IMPROVEMENT If the urine ... Assess UA w/ microscopy ... for WBCs, RBCs,
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
sediment Microscopic ... syndrome: • Flank pain ... casts → Diagnostic ... Hematuria: • Urethritis ... causes #urology #nephrology
Urinary Casts and Disease Associations
Hyaline - May be nonspecific; seen in normal individuals or during severe
and concentrated urine ... are seen in acute ... edgarvlermamd - Nephrology ... #Differential #Microscopy ... #Diagnosis #Nephrology
Urinalysis & Urine Sodium 
Theophilus Protospatharius, a seventh-century physician who wrote the first manuscript focused exclusively
Microscopic exam ... Red blood cells (RBC ... • Urinary casts ... Acute Kidney Injury ... Acute Tubular Necrosis
Guide to Acute Kidney Injury (AKI)

What to ask/look for: 
 - HPI, PMH, full ROS
Guide to Acute Kidney ... - BMP, cap, CBC ... - Urinalysis/microscopy ... UOP/weights - Urine ... AcuteKidneyInjury #AKI #Nephrology
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
polarized light microscopy ... the presence of anemia ... Screening Tests for Acute ... Complete blood count (CBC ... • Serum and urine