13 results
Hematuria Workup and Diagnosis Algorithm
 • Confirm hematuria → Urinalysis >3 RBCs/HPF, exclude mimics, repeat testing
Hematuria Workup ... → Urine culture ... • Evidence of glomerular ... proteinuria, RBC casts ... if cause not identified
Atlas of Urine Microscopy Findings
 • Epithelial cells - Normal
 • Renal tubular cells - Acute
Atlas of Urine Microscopy ... • Red cell casts ... • White cell casts ... key #diagnosis #nephrology ... #casts
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
sediment Microscopic ... sediment by microscopy ... hematuria: - RBC casts ... microscopic and ... #urology #nephrology
Causes of Proteinuria - Differential Diagnosis Algorithm
Persistent Proteinuria >150mg/d protein present on repeat testing including overnight
• Drugs Glomerular ... sediment - WBC/RBC casts ... polyangiitis (GPA) / microscopic ... #Proteinuria #Nephrology ... #Causes
Nephritic vs Nephrotic Syndrome

Step 1: If the patient has hematuria and/or proteinuria, think about nephrotic/nephritic syndromes.
Step
the patient have glomerular ... hematuria (RBC casts ... dysmorphic RBCs in urine ... Syndrome #Comparison #Algorithm ... #Nephrology #Diagnosis
Causes of Hematuria - Differential Diagnosis Algorithm
Red blood cells on urine microscopy. Must exclude false positives
Differential Diagnosis Algorithm ... blood cells on urine ... microscopy. ... RBCs and/or RBC casts ... with polyangiitis/microscopic
Acute Kidney Injury - AKI Workup Algorithm and Differential Diagnosis
Baseline Investigations: full blood count with differential,
Kidney Injury - AKI Workup ... microscopy / urinary ... , urine culture, ... #Diagnosis #nephrology ... #causes
Simplified Approach to Acute Kidney Injury (AKI)
1) IS THIS AN EMERGENCY? 
Is there a dialysis indication
PROBLEM ~80% of AKI cases ... IMPROVEMENT If the urine ... Assess UA w/ microscopy ... for WBCs, RBCs, casts ... KidneyInjury #simplified #workup
Urine Microscopy Instructions - How to spin urine

1. Collect a fresh urine sample (5 – 10
Urine Microscopy ... the better, as casts ... minutes (make sure ... #Urine #Microscopy ... Procedure #Urinalysis #Nephrology
Algorithm - Approach to the differential diagnosis of the patient presenting with overt glomerular proteinuria. CMV
Algorithm - Approach ... arbitrarily defined as urine ... cell/white cell casts ... Nephrocalcinosis causes ... nephrotic #syndrome #nephrology