10 results
Algorithmic Approach to Acute Interstitial Nephritis
When to suspect AIN? (not sensitive)
 • AKI, AKD, rapidly progressive
sterile pyuria, WBC casts ... eosinophiluria, microscopic ... , mild tubular 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 ... • Fanconi's syndrome ... sediment - WBC/RBC casts ... polyangiitis (GPA) / microscopic
Nephritic vs Nephrotic Syndrome

Step 1: If the patient has hematuria and/or proteinuria, think about nephrotic/nephritic syndromes.
Step
Nephritic vs Nephrotic Syndrome ... hematuria and/or proteinuria ... hematuria (RBC casts ... #Comparison #Algorithm ... #Nephrology #Diagnosis
Urine Microscopy - Casts
Acellular Casts
 • Hyaline Casts - Consists of only precipitated Tamm-Horsfell protein without
Urine Microscopy ... suggestive of nephrotic sydnrome ... suggestive of interstitial ... #Urine #Microscopy ... #nephrology #interpretation
Causes of Acute Kidney Injury (AKI) - Differential Diagnosis Algorithm
Acute Kidney Injury (AKI) - Acute increase
• Hepatorenal syndromes ... Epithelial cell casts ... Obstruction • Cast ... polyangiitis /microscopic ... polyangiitis) Acute Interstitial
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
disease - Alport syndrome ... pain hematuria syndrome ... hematuria: - RBC casts ... Brown urine - Proteinuria ... #urology #nephrology
Causes of Chronic Kidney Disease - Differential Diagnosis Algorithm
Decreased kidney function (eGFR < 60 ml/min/1.73 m2)
Differential Diagnosis Algorithm ... Glomerular (Proteinuria ... Hypertension Interstitial ... Sterile pyuria, WBC casts ... #Causes
Acute Kidney Injury - AKI Workup Algorithm and Differential Diagnosis
Baseline Investigations: full blood count with differential,
Injury - AKI Workup Algorithm ... dipstick, urine microscopy ... osmolarity If cause ... renal biopsy • Interstitial ... #causes
Algorithm - Approach to the differential diagnosis of the patient presenting with overt glomerular proteinuria. CMV
Algorithm - Approach ... hemolytic-uremic syndrome ... cell/white cell casts ... #nephrotic #syndrome ... #nephrology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
• Hematuria, proteinuria ... affects the skin, neurologic ... (PR3-ANCA)): Microscopic ... tract, and often causes ... inflammatory lesions - interstitial