19 results
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
of Glomerular Bleeding ... disease - Alport syndrome ... pain hematuria syndrome ... • Nutcracker syndrome ... #urology #nephrology
Hematuria Workup and Diagnosis Algorithm
 • Confirm hematuria → Urinalysis >3 RBCs/HPF, exclude mimics, repeat testing
• Evidence of glomerular ... → Refer to Nephrology ... for renal biopsy ... cystoscopy • Refer to Nephrology ... if cause not identified
Nephritic vs Nephrotic Syndrome

Step 1: If the patient has hematuria and/or proteinuria, think about nephrotic/nephritic syndromes.
Step
Nephritic vs Nephrotic Syndrome ... the patient have glomerular ... hematuria (RBC ... casts or dysmorphic ... Comparison #Algorithm #Nephrology
Glomerular Diseases - Nephritic and Nephrotic Syndromes

Nephritic syndrome—due to GBM disruption. 
Hypertension. t BUN and creatinine.
Glomerular Diseases ... RBC casts in urine ... but in severe cases ... diabetes)) #Glomerular ... #Proteinuria #Nephrology
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
ANA (Antinuclear ... • Sjögren syndrome ... polyangiitis without renal ... ANCA+ 30-60% • Renal-limited ... antibodies #diagnosis #rheumatology
Causes of Proteinuria - Differential Diagnosis Algorithm
Persistent Proteinuria >150mg/d protein present on repeat testing including overnight
• Fanconi's syndrome ... • Drugs Glomerular ... urine sediment - WBC ... /RBC casts ... #Proteinuria #Nephrology
Causes of Chronic Kidney Disease - Differential Diagnosis Algorithm
Decreased kidney function (eGFR < 60 ml/min/1.73 m2)
Causes of Chronic ... Atherosclerosis Glomerular ... Sterile pyuria, WBC ... KidneyDisease #Nephrology ... Diagnosis #Algorithm #Causes
Antinuclear Antibody Testing - Nuclear and Cytoplasmic Patterns
Nuclear Patterns:
 • Homogeneous pattern: 
   -
Antinuclear Antibody ... body-like: - Neurologic ... ARUPLabs #ANA #Antinuclear ... #Antibody #Testing ... differential #diagnosis #rheumatology
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Pulmonary Renal ... Syndrome Definition ... sclerosis • Anti-Glomerular ... Investigations • Labs: CBC ... #diagnosis #nephrology
Membranoproliferative Glomerulonephritis (MPGN) AKA: Mesangiocapillary GN
 • Active Urine Sediment (dysmorphic RBC, RBC casts, +/- proteinuria)
, RBC casts, +/- ... formation along glomerular ... anti-phospholipid syndrome ... Glomerulonephritis #MPGN #nephrology ... #diagnosis #renal