23 results
Algorithmic Approach to Acute Interstitial Nephritis
When to suspect AIN? (not sensitive)
 • AKI, AKD, rapidly progressive
Algorithmic Approach ... sterile pyuria, WBC casts ... proteinuria, granular casts ... /RTE; blend sediment ... Nephritis #AIN #Algorithm
Causes of Polyuria - Differential Diagnosis Algorithm
Polyuria - Urine Output > 3L/day, Increased Urine Volume (>2ml/min)
Osmotic
Differential Diagnosis Algorithm ... Polyuria - Urine ... day, Increased Urine ... Steroids], GI Bleed ... Differential #Diagnosis #Algorithm
Hematuria Workup and Diagnosis Algorithm
 • Confirm hematuria → Urinalysis >3 RBCs/HPF, exclude mimics, repeat testing
and Diagnosis Algorithm ... WBCs, or urine ... → Urine culture ... proteinuria, RBC casts ... Hematuria #Diagnosis #Algorithm
Nephritic vs Nephrotic Syndrome

Step 1: If the patient has hematuria and/or proteinuria, think about nephrotic/nephritic syndromes.
Step
hematuria (RBC casts ... dysmorphic RBCs in urine ... Syndrome #Comparison #Algorithm
Additional Modalities for Workup of GI Bleed (Other than EGD + Colonoscopy)

Pill endoscopy
 • Able to
for Workup of GI Bleed ... non-therapeutic, massive bleed ... Noninvasive • False ... bowel duplication cysts ... gastroenterology #table
Causes of Proteinuria - Differential Diagnosis Algorithm
Persistent Proteinuria >150mg/d protein present on repeat testing including overnight
Differential Diagnosis Algorithm ... Proteinuria (Negative urine ... Proteinuria (Positive urine ... sediment - WBC/RBC casts ... Differential #Diagnosis #Algorithm
Causes of Hematuria - Differential Diagnosis Algorithm
Red blood cells on urine microscopy. Must exclude false positives
Differential Diagnosis Algorithm ... blood cells on urine ... Must exclude false ... RBCs and/or RBC casts ... Differential #Diagnosis #Algorithm
Lower GI Bleed - Management Algorithm

Suspected lower GI bleeding (LGIB):
 • Hematochezia 
 • Melena +
Lower GI Bleed - ... Management Algorithm ... ) vs Stable Patient ... #Lower #GI #Bleed ... GIBleed #management #Algorithm
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
Hematuria: Red/Dark urine ... 1ml blood/liter urine ... examination of urine ... hematuria: - RBC casts ... Pseudohematuria: • GI bleed
Algorithm - Approach to the differential diagnosis of the patient presenting with overt glomerular proteinuria. CMV
Algorithm - Approach ... arbitrarily defined as urine ... cell/white cell casts ... because nephritic urine ... #Algorithm #differential