15 results
Atlas of Urine Microscopy Findings
 • Epithelial cells - Normal
 • Renal tubular cells - Acute
Atlas of Urine Microscopy ... also be seen if urine ... - Some crystals ... contamination #Urine ... key #diagnosis #nephrology
Causes of Proteinuria - Differential Diagnosis Algorithm
Persistent Proteinuria >150mg/d protein present on repeat testing including overnight
(Negative urine ... (Positive urine ... albuminuria) - Active urine ... sediment - WBC/RBC casts ... #Nephrology #Differential
Glomerular Diseases - Nephritic and Nephrotic Syndromes

Nephritic syndrome—due to GBM disruption. 
Hypertension. t BUN and creatinine.
RBC casts in urine ... Proteinuria often ... but in severe cases ... Massive proteinuria ... #Nephrology #Diagnosis
Urinalysis & Urine Sodium 
Theophilus Protospatharius, a seventh-century physician who wrote the first manuscript focused exclusively
proteins, documenting proteinuria ... Microscopic exam • Crystals ... • Urinary casts ... #Urinalysis #crystals ... #UNa #casts #glucosuria
Nephritic vs Nephrotic Syndrome

Step 1: If the patient has hematuria and/or proteinuria, think about nephrotic/nephritic syndromes.
Step
hematuria and/or proteinuria ... hematuria (RBC casts ... dysmorphic RBCs in urine ... Comparison #Algorithm #Nephrology
Hematuria Workup and Diagnosis Algorithm
 • Confirm hematuria → Urinalysis >3 RBCs/HPF, exclude mimics, repeat testing
WBCs, or urine ... glomerular bleeding (proteinuria ... , RBC casts, dysmorphic ... → Refer to Nephrology ... cystoscopy • Refer to Nephrology
Simplified Approach to Acute Kidney Injury (AKI)
1) IS THIS AN EMERGENCY? 
Is there a dialysis indication
require urgent nephrology ... PROBLEM ~80% of AKI cases ... IMPROVEMENT If the urine ... for WBCs, RBCs, casts ... , crystals, protein
Algorithm - Approach to the differential diagnosis of the patient presenting with overt glomerular proteinuria. CMV
overt glomerular proteinuria ... arbitrarily defined as urine ... cell/white cell casts ... because nephritic urine ... nephrotic #syndrome #nephrology
Membranoproliferative Glomerulonephritis (MPGN) AKA: Mesangiocapillary GN
 • Active Urine Sediment (dysmorphic RBC, RBC casts, +/- proteinuria)
GN • Active Urine ... dysmorphic RBC, RBC casts ... , +/- proteinuria ... Glomerulonephritis #MPGN #nephrology
Hypertensive Disorders of Pregnancy
Chronic Hypertension:
 • Guidelines as SBP ≥130 or DBP ≥ 90 mmHg
 •
, 300 mg/24 hr urine ... ratio ≥ 0.3, or Urine ... insufficiency (Cr ... or doubling of Cr ... htn #obstetrics #cardiology