23 results
Hematuria Workup and Diagnosis Algorithm
 • Confirm hematuria → Urinalysis >3 RBCs/HPF, exclude mimics, repeat testing
and Diagnosis Algorithm ... repeat testing • Acute ... proteinuria, RBC casts ... → Refer to Nephrology ... cystoscopy • Refer to Nephrology
Differential Diagnosis of Acute Kidney Injury 

#Diagnosis #Nephrology #AKI #Acute #KidneyInjury #Causes #Differential #Workup #Algorithm #Ddxof
Differential Diagnosis of Acute ... #Diagnosis #Nephrology ... #Causes #Differential ... #Workup #Algorithm ... #Ddxof
Urine Microscopy - Casts
Acellular Casts
 • Hyaline Casts - Consists of only precipitated Tamm-Horsfell protein without
Urine Microscopy ... suggestive of acute ... in a variety of acute ... #Urine #Microscopy ... #nephrology #interpretation
Atlas of Urine Microscopy Findings
 • Epithelial cells - Normal
 • Renal tubular cells - Acute
• White cell casts ... infection • Hyaline casts ... disease • Granular casts ... key #diagnosis #nephrology ... #casts
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted - 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting,
Primary Metabolic Alkalosis ... Differential Diagnosis Algorithm ... hyperaldosteronism • Low Urine ... (late) • High Urine ... #Nephrology #Causes
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 ... workup #diagnosis #nephrology
Algorithmic Approach to Acute Interstitial Nephritis
When to suspect AIN? (not sensitive)
 • AKI, AKD, rapidly progressive
Algorithmic Approach ... to Acute Interstitial ... sterile pyuria, WBC casts ... proteinuria, granular casts ... #nephrology #diagnosis
Causes of Proteinuria - Differential Diagnosis Algorithm
Persistent Proteinuria >150mg/d protein present on repeat testing including overnight
Causes of Proteinuria ... Differential Diagnosis Algorithm ... sediment - WBC/RBC casts ... #Proteinuria #Nephrology ... #Causes
Hypophosphatemia - Differential Diagnosis Algorithm
 • Decreased intake/absorption: Starvation, Alcoholism, Malabsorption, Phosphate binder use
 • Redistribution/
Differential Diagnosis Algorithm ... into cells - Acute ... depletion: Respiratory alkalosis ... Catecholamines - Acute ... #causes #nephrology
Urinary Casts and Disease Associations
Hyaline - May be nonspecific; seen in normal individuals or during severe
Urinary Casts and ... breakdown of cellular casts ... heme-granular casts ... edgarvlermamd - Nephrology ... Microscopy #Diagnosis #Nephrology