13 results
Algorithmic Approach to Acute Interstitial Nephritis
When to suspect AIN? (not sensitive)
 • AKI, AKD, rapidly progressive
Algorithmic Approach ... to Acute Interstitial ... eosinophiluria, microscopic hematuria ... , mild tubular proteinuria ... #nephrology #diagnosis
Nephritic vs Nephrotic Syndrome

Step 1: If the patient has hematuria and/or proteinuria, think about nephrotic/nephritic syndromes.
Step
the patient has hematuria ... and/or proteinuria ... (RBC casts or dysmorphic ... Syndrome #Comparison #Algorithm ... #Nephrology #Diagnosis
Hematuria Workup and Diagnosis Algorithm
 • Confirm hematuria → Urinalysis >3 RBCs/HPF, exclude mimics, repeat testing
and Diagnosis Algorithm ... repeat testing • Acute ... glomerular bleeding (proteinuria ... , RBC casts, dysmorphic ... → Refer to Nephrology
Algorithm and Differential Diagnosis of Macroscopic Hematuria
Important Historical Elements:
- Painless: suggests malignancy
- Painful: suggests calculi/infection
- Urinalysis:
Algorithm and Differential ... of Macroscopic Hematuria ... RBC’s, RBC/WBC casts ... , proteinuria suggest ... #Algorithm #Ddxof
Glomerular Diseases - Spectrum
 - Insidious vs Acute
 - Nephritic (hypertension, hematuria, renal failure) vs Nephrotic
- Insidious vs Acute ... (hypertension, hematuria ... Nephrotic (Heavy proteinuria ... Diseases #Spectrum #differential ... #diagnosis #nephrology
Causes of Proteinuria - Differential Diagnosis Algorithm
Persistent Proteinuria >150mg/d protein present on repeat testing including overnight
- Differential ... Diagnosis Algorithm ... sediment - WBC/RBC casts ... #Nephrology #Differential ... #Diagnosis #Algorithm
Causes of Dysuria - Differential Diagnosis Algorithm
Pyuria - Leukocytes on Dipstick/Microscopy
 - Bacteriuria & Hematuria -
Causes of Dysuria - Differential ... Diagnosis Algorithm ... Pyuria - Leukocytes ... Bacteriuria & Hematuria ... Pyelonephritis - WBC Casts
Causes of Hematuria - Differential Diagnosis Algorithm
Red blood cells on urine microscopy. Must exclude false positives
- Differential ... Diagnosis Algorithm ... RBCs and/or RBC casts ... nephrotic range) proteinuria ... #Differential #
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
Hematuria - Differential ... : - RBC casts ... Brown urine - Proteinuria ... #Differential # ... causes #urology #nephrology
Urinalysis & Urine Sodium 
Theophilus Protospatharius, a seventh-century physician who wrote the first manuscript focused exclusively
proteins, documenting proteinuria ... • Urinary casts ... Acute Kidney Injury ... #urine #UNa #casts ... #glucosuria #hematuria