11 results
Urine Microscopy - Kidney Stones and Crystals 

Uric Acid, Cystine, Hippurate, Cloth Fiber, Tyrosine, CaOx, CaP,
Urine Microscopy ... Kidney Stones and Crystals ... #Microscopy #Crystals ... Differential #Shapes #Diagnosis ... Key #Nephrology #Sediment
Atlas of Urine Microscopy Findings
 • Epithelial cells - Normal
 • Renal tubular cells - Acute
Atlas of Urine Microscopy ... • Red cell casts ... • White cell casts ... disease • Granular casts ... #nephrology #casts
Urine Microscopy - Urinary Sediment Examination Instructions
Preparation of the urine for microscopic examination:
 • Clean catch
Urine Microscopy ... up by cells or casts ... Ill stain) and crystals ... RBC's, lipids, crystals ... protein matrix of casts
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
- Differential Diagnosis ... sediment Microscopic ... sediment by microscopy ... hematuria: - RBC casts ... → Diagnostic of
Causes of Proteinuria - Differential Diagnosis Algorithm
Persistent Proteinuria >150mg/d protein present on repeat testing including overnight
- Differential Diagnosis ... sediment - WBC/ ... RBC casts ... polyangiitis (GPA) / microscopic ... sediment
Simplified Approach to Acute Kidney Injury (AKI)
1) IS THIS AN EMERGENCY? 
Is there a dialysis indication
PROBLEM ~80% of AKI cases ... IMPROVEMENT If the urine ... Assess UA w/ microscopy ... for WBCs, RBCs, casts ... , crystals, protein
Urine Microscopy Instructions
1) Spin fresh urine sample (10-15mL) in a centrifuge for 3-5 minutes - Don't
Urine Microscopy ... 1) Spin fresh urine ... the remaining sediment ... under lower power (casts ... #nephrology #diagnosis
Causes of Hematuria - Differential Diagnosis Algorithm
Red blood cells on urine microscopy. Must exclude false positives
- Differential Diagnosis ... blood cells on urine ... microscopy. ... RBCs and/or RBC casts ... #Algorithm #Causes
Urinalysis & Urine Sodium 
Theophilus Protospatharius, a seventh-century physician who wrote the first manuscript focused exclusively
sediment and color ... Microscopic exam ... • Crystals ... • Urinary casts ... #UNa #casts #glucosuria
Acute Kidney Injury - AKI Workup Algorithm and Differential Diagnosis
Baseline Investigations: full blood count with differential,
Kidney Injury - AKI Workup ... and Differential Diagnosis ... microscopy / urinary ... sediment, renal ... osmolarity If cause