54 results
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 ... #urology #nephrology ... #renal #urine #
Distal Renal Tubular Acidosis (RTA)  Type 1 

Totally scuppers the kidney's acidification mechanism. Will be
Distal Renal Tubular ... diagnosis with direct urine ... Failure to acidify urine ... Distal #Diagnosis #Management ... #Nephrology #Causes
Causes Abnormal Urine Color - Differential Diagnosis
Turbid White Urine (Albinuria):
 • Chyluria, Filariasis, Schistosomiasis, Malignancy, Phosphaturia,
Causes Abnormal ... syndrome (blue diaper ... Syndrome - UTI caused ... #Color #discoloration ... Differential #Diagnosis #nephrology
Urine Color - Differential Diagnosis
Red Urine:
 • Medical conditions: bleeding, porphyria, factitious disorder
 • Meds: rifampin,
Diagnosis Red Urine ... : • Any cause of ... dyes typically cause ... Diagnosis #urinalysis #discoloration ... #nephrology
Hematuria Workup and Diagnosis Algorithm
 • Confirm hematuria → Urinalysis >3 RBCs/HPF, exclude mimics, repeat testing
proteinuria, RBC casts ... → Refer to Nephrology ... for renal biopsy ... cystoscopy • Refer to Nephrology ... if cause not identified
Acute Kidney Injury - AKI Workup Algorithm and Differential Diagnosis
Baseline Investigations: full blood count with differential,
differential, urine ... dipstick, urine ... osmolarity If cause ... Differential #Diagnosis #nephrology ... #causes
Possible Causes of Altered Urine Color 

Red 
    Foods: beets, blackberries, rhubarb
Possible Causes ... of Altered Urine ... Conditions: blue diaper ... #Colored #Discoloration ... Differential #Diagnosis #Nephrology
Polyuria - Differential Diagnosis Algorithm
Urine Output > 3L /day
Water Diuresis (Urine Osm <100 mOsm/kg)
 • Primary
Diagnosis Algorithm Urine ... Water Diuresis (Urine ... Dl • Chronic Renal ... Diagnosis #Algorithm #causes ... #nephrology
Approach to Hypomagnesemia 

Fractional excretion of magnesium = (urine magnesium x serum creatinine)/ [0.7 (serum magnesium
of magnesium = (urine ... serum magnesium x urine ... cells FEMg >4% = renal ... differential #diagnosis #causes ... #nephrology #magnesium
Sulfa Crystals on Urine Microscopy
Sulfa Crystal!  Drug-induced crystalluria is a cause of acute renal failure
Sulfa Crystals on Urine ... crystalluria is a cause ... of acute renal ... Sulfa #Crystals #Urine ... crystalluria #clinical #nephrology