14 results
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
: - RBC casts ... Causes of Hematuria ... microscopic and ... #urology #nephrology ... #renal #urine #
Algorithmic Approach to Acute Interstitial Nephritis
When to suspect AIN? (not sensitive)
 • AKI, AKD, rapidly progressive
sterile pyuria, WBC casts ... eosinophiluria, microscopic ... hematuria, mild ... proteinuria, granular casts ... AIN #Algorithm #nephrology
Atlas of Urine Microscopy Findings
 • Epithelial cells - Normal
 • Renal tubular cells - Acute
Atlas of Urine Microscopy ... • Red cell casts ... • Hyaline casts ... key #diagnosis #nephrology ... #casts
Hematuria Workup and Diagnosis Algorithm
 • Confirm hematuria → Urinalysis >3 RBCs/HPF, exclude mimics, repeat testing
proteinuria, RBC casts ... → Refer to Nephrology ... for renal biopsy ... cystoscopy • Refer to Nephrology ... if cause not identified
Simplified Approach to Acute Kidney Injury (AKI)
1) IS THIS AN EMERGENCY? 
Is there a dialysis indication
require urgent nephrology ... cases are caused ... IMPROVEMENT If the urine ... Assess UA w/ microscopy ... for WBCs, RBCs, casts
Guide to Acute Kidney Injury (AKI)

What to ask/look for: 
 - HPI, PMH, full ROS
- Urinalysis/microscopy ... UOP/weights - Urine ... rhabdo/TLS) Causes ... #Nephrology #Diagnosis ... #Algorithm #Causes
Acute Kidney Injury - AKI Workup Algorithm and Differential Diagnosis
Baseline Investigations: full blood count with differential,
Kidney Injury - AKI ... microscopy / urinary ... osmolarity If cause ... Differential #Diagnosis #nephrology ... #causes
Causes of Acute Kidney Injury (AKI) - Differential Diagnosis Algorithm
Acute Kidney Injury (AKI) - Acute increase
at least 50% Renal ... Epithelial cell casts ... Obstruction • Cast ... polyangiitis /microscopic ... #KidneyInjury #Nephrology
Urinary Casts and Disease Associations
Hyaline - May be nonspecific; seen in normal individuals or during severe
Urinary Casts and ... and concentrated urine ... breakdown of cellular casts ... heme-granular casts ... 34t5DgJ #Urinary #Casts
Urinalysis & Urine Sodium 
Theophilus Protospatharius, a seventh-century physician who wrote the first manuscript focused exclusively
Microscopic exam ... • Urinary casts ... Kidney Injury (AKI ... #UNa #casts #glucosuria ... #hematuria