26 results
Hypokalemia Differential Algorithm
Acidosis
 - RTA
 - Diarrhea
pH Normal 
 1. Decreased Mg 
 2. Intracellular Shift
Intracellular Shift ... Metabolic alkalosis ... Renal artery stenosis ... #Diagnosis #Causes ... #Workup #Nephrology
Hypokalemia Differential Diagnosis Algorithm

Low intake 
• poor oral intake 

Renal loss 
• Medication 
• Hypomagnesemia 
•
Differential Diagnosis Algorithm ... oral intake Renal ... Nonreabsorbable anions • Renal ... Transcellular shift ... #Causes #Classification
Hyperphosphatemia - Differential Diagnosis Algorithm
Transcellular Shift:
 • Rhabdomyolysis
 • Tumor Lysis
 • Metabolic or Respiratory Acidosis
Differential Diagnosis Algorithm ... Transcellular Shift ... Tumor Lysis • Metabolic ... PO4 < 20%: • Renal ... endocrinology #causes
Hypophosphatemia - Differential Diagnosis Algorithm
 • Decreased intake/absorption: Starvation, Alcoholism, Malabsorption, Phosphate binder use
 • Redistribution/
Differential Diagnosis Algorithm ... Redistribution/ Shift ... bone syndrome • Renal ... Differential #Diagnosis #Algorithm ... #causes #nephrology
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
Extra-renal Losses ... Low intake • Metabolic ... loss (Diarrhea) Renal ... #causes #potassium ... #low #nephrology
Approach to Hypomagnesemia 

Fractional excretion of magnesium = (urine magnesium x serum creatinine)/ [0.7 (serum magnesium
intake, Gl loss, shift ... cells FEMg >4% = renal ... Hypomagnesemia #algorithm ... differential #diagnosis #causes ... #nephrology #magnesium
Causes of Solid or Cystic Renal Mass - Differential Diagnosis Algorithm
Solid Renal Mass:
 • Benign <3
Causes of Solid ... Differential Diagnosis Algorithm ... Cystic #RenalMass #Nephrology ... Differential #Diagnosis #Algorithm ... #Causes
Causes of Hyponatremia - Differential Diagnosis Algorithm
Hypovolemia, UNa > 20: 
 • Renal losses, Diuretic excess,
Causes of Hyponatremia ... Differential Diagnosis Algorithm ... tubal acidosis and metabolic ... Differential #Diagnosis #Algorithm ... #Causes #nephrology
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted - 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting,
Primary Metabolic ... Differential Diagnosis Algorithm ... hyperaldosteronism • High PRA: Renal ... aldosteronism #Metabolic ... #Nephrology #Causes
Causes of Chronic Kidney Disease - Differential Diagnosis Algorithm
Decreased kidney function (eGFR < 60 ml/min/1.73 m2)
Differential Diagnosis Algorithm ... Family history, ultrasound ... KidneyDisease #Nephrology ... Differential #Diagnosis #Algorithm ... #Causes