37 results
Urinalysis & Urine Sodium 
Theophilus Protospatharius, a seventh-century physician who wrote the first manuscript focused exclusively
• Ketones • Leukocyte ... • Urinary casts ... : • White blood ... dipstick #nitrite #leucocyte-esterase ... #urine #UNa #casts
Atlas of Urine Microscopy Findings
 • Epithelial cells - Normal
 • Renal tubular cells - Acute
microscopy • Red cell casts ... glomerular disease • Leukocytes ... • White cell casts ... infection • Hyaline casts ... disease • Granular casts
Hematuria Workup and Diagnosis Algorithm
 • Confirm hematuria → Urinalysis >3 RBCs/HPF, exclude mimics, repeat testing
Hematuria Workup ... proteinuria, RBC casts ... Nephrology if cause ... Diagnosis #Algorithm #Workup ... #urology #blood
Examples of varying granular and granular/waxy mixed casts: 
A: coarse granular/broad-waxy (and surrounding white blood cells);
granular/waxy mixed casts ... surrounding white blood ... Granular #MuddyBrown #Casts ... #Urine #Microscopy
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 ... CONSIDER INTRINSIC CAUSES ... for WBCs, RBCs, casts ... KidneyInjury #simplified #workup
Acute Kidney Injury - AKI Workup Algorithm and Differential Diagnosis
Baseline Investigations: full blood count with differential,
Kidney Injury - AKI Workup ... Investigations: full blood ... osmolarity If cause ... screen, including blood ... #Injury #AKI #Workup
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 can induce ... hematuria: - RBC casts ... #blood
Urinary Casts and Disease Associations
Hyaline - May be nonspecific; seen in normal individuals or during severe
Urinary Casts and ... and concentrated urine ... breakdown of cellular casts ... heme-granular casts ... 34t5DgJ #Urinary #Casts
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Diagnosis and Workup ... practices that could cause ... plateletcount), peripheral blood ... PLT in selected cases ... #Workup #hematology
Intraoperative Sepsis - Guidelines for Crises in Anaesthesia

Severe sepsis (hypotension persisting after initial fluid challenge of
of 30ml.kg-1 or blood ... including blood ... record hourly urine ... surgical site, urine ... Diagnosis #Management #Workup