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

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
- Differential Diagnosis ... hematuria: - RBC casts ... → Diagnostic of ... #Differential #Diagnosis ... #nephrology #renal
Causes of Proteinuria - Differential Diagnosis Algorithm
Persistent Proteinuria >150mg/d protein present on repeat testing including overnight
- Differential Diagnosis ... present on repeat testing ... • Drugs Glomerular ... sediment - WBC/RBC casts ... #Proteinuria #Nephrology
Gitelman Syndrome - Diagnosis and Workup
Blood Work:
 - Hypokalemia
 - Hypomagnesemia
 - Metabolic Alkalosis
 - Elevated
Hypomagnesemia - Metabolic Alkalosis ... Elevated Renin Urine ... Testing: - Hypocalciuria ... renal Mg++ wasting ... #Workup #nephrology
Causes of Metabolic Alkalosis: Differential Diagnosis
ECF volume contracted: urine chloride concentration <20 meq/L
 • Gastric alkalosis:
Causes of Metabolic ... Diagnosis ECF ... diuretics after renal ... Refeeding after fasting ... #Causes #nephrology
Membranoproliferative Glomerulonephritis (MPGN) AKA: Mesangiocapillary GN
 • Active Urine Sediment (dysmorphic RBC, RBC casts, +/- proteinuria)
GN • Active Urine ... dysmorphic RBC, RBC casts ... formation along glomerular ... Glomerulonephritis #MPGN #nephrology ... #diagnosis #renal
Recommended initial testing for patients being evaluated for glomerular disease 

24-hour urine collection - Quantify proteinuria.
Recommended initial testing ... infections are common causes ... #testing #workup ... #diagnosis #glomerulonephritis ... nephrotic #nephritic #nephrology
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
from other causes ... suggests extra-renal ... - Metabolic Alkalosis ... #Hypokalemia #diagnosis ... differential #potassium #nephrology
Recommended initial testing for patients being evaluated for glomerular disease
1) 24-hour urine collection - Quantify proteinuria.
Recommended initial testing ... disease 1) 24-hour urine ... infections are common causes ... #workup #diagnosis ... #nephrology #nephrotic