58 results
Approach to Hypomagnesemia 

Fractional excretion of magnesium = (urine magnesium x serum creatinine)/ [0.7 (serum magnesium
of magnesium = (urine ... serum magnesium x urine ... intake, Gl loss, shift ... diagnosis #causes #nephrology
Gowers' Sign on Physical Exam

Seen in this patient with Duchenne muscular dystrophy (DMD)

#Gowers #Sign #PhysicalExam #neurology
Gowers' Sign on ... dystrophy (DMD) #Gowers ... #Sign #PhysicalExam ... #neurology #clinical
Algorithm for patients with hypokalemia on the basis of the potassium-to-creatinine ratio in the urine
Urine K+
Urine K+ <13 mEq ... creatinine) • Cell shift ... loss: Diarrhea Urine ... HCO3- • Low Urine ... algorithm #diagnosis #nephrology
Granular & “Muddy Brown” Casts on Urine Microscopy
A. Finely granular cast B. slightly coarser granular cast
Brown” Casts on Urine ... “urine poker quads ... appreciated at low power ... compared to high power ... Microscopy #Clinical #Nephrology
Distal Renal Tubular Acidosis (RTA)  Type 1 

Totally scuppers the kidney's acidification mechanism. Will be
diagnosis with direct urine ... Failure to acidify urine ... secretion Cannot lower ... Diagnosis #Management #Nephrology
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 ... power (casts may ... iMedEducation #Urine ... #Instructions #nephrology
Lower Urinary Tract Infection: Pathogenesis and Clinical Findings

- Predisposing Factors:  Immunocompromised state, diabetes, elderly, female
Lower Urinary Tract ... urethra), stagnant urine ... epithelium -> Lower ... causing symptoms Signs ... Pathophysiology #Signs
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
1ml blood/liter urine ... hematuria + clots ➔ Lower ... hematuria • Signs ... Bladder (Upper and Lower ... causes #urology #nephrology
Workup for Hypophosphatemia - Differential Diagnosis Framework
Rule out spurious hypophosphatemia: paraproteinemia, acute leukemia
Measure Urine Fractional Excretion
leukemia Measure Urine ... Transcellular Shift ... Workup #phosphate #nephrology
Atlas of Urine Microscopy Findings
 • Epithelial cells - Normal
 • Renal tubular cells - Acute
Atlas of Urine Microscopy ... also be seen if urine ... to 3 per high-power ... contamination #Urine ... key #diagnosis #nephrology