17 results
Atlas of Urine Microscopy Findings
 • Epithelial cells - Normal
 • Renal tubular cells - Acute
Atlas of Urine Microscopy ... fresh at time of microscopy ... glomerular disease • Leukocytes ... tubular injury • Crystals ... - Some crystals
Causes of Dysuria - Differential Diagnosis Algorithm
Pyuria - Leukocytes on Dipstick/Microscopy
 - Bacteriuria & Hematuria -
Differential Diagnosis Algorithm ... Pyuria - Leukocytes ... on Dipstick/Microscopy ... Bacteriuria & Hematuria ... Pyelonephritis - WBC Casts
Algorithmic Approach to Acute Interstitial Nephritis
When to suspect AIN? (not sensitive)
 • AKI, AKD, rapidly progressive
Algorithmic Approach ... sterile pyuria, WBC casts ... eosinophiluria, microscopic ... hematuria, mild ... #Algorithm #nephrology
Urinalysis & Urine Sodium 
Theophilus Protospatharius, a seventh-century physician who wrote the first manuscript focused exclusively
Microscopic exam ... • Crystals ... • Urinary casts ... #urine #UNa #casts ... #glucosuria #hematuria
Causes of Hematuria - Differential Diagnosis Algorithm
Red blood cells on urine microscopy. Must exclude false positives
Differential Diagnosis Algorithm ... cells on urine microscopy ... RBCs and/or RBC casts ... with polyangiitis/microscopic ... Differential #Diagnosis #Algorithm
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
urine sediment Microscopic ... urine sediment by microscopy ... : • Flank pain ... + gross or microscopic ... : - RBC casts
Nephritic vs Nephrotic Syndrome

Step 1: If the patient has hematuria and/or proteinuria, think about nephrotic/nephritic syndromes.
Step
the patient has hematuria ... have glomerular hematuria ... (RBC casts or dysmorphic ... RBCs in urine)? ... Syndrome #Comparison #Algorithm
Urine Microscopy - Urinary Sediment Examination Instructions
Preparation of the urine for microscopic examination:
 • Clean catch
protein, blood or leukocyte ... up by cells or casts ... Ill stain) and crystals ... RBC's, lipids, crystals ... protein matrix of casts
Crystal cast in patient with AKI and TLS on Urine Microscopy

Randy Luciano MD, PhD @RandyLucianoMD

#TLS #Crystal
Crystal cast in ... and TLS on Urine Microscopy ... RandyLucianoMD #TLS #Crystal ... #casts #crystalluria ... #Urine #Microscopy
Hematuria Workup and Diagnosis Algorithm
 • Confirm hematuria → Urinalysis >3 RBCs/HPF, exclude mimics, repeat testing
Hematuria Workup ... and Diagnosis Algorithm ... unilateral flank pain ... proteinuria, RBC casts ... #Diagnosis #Algorithm