12 results
Polyuria - Differential Diagnosis Algorithm
Urine Output > 3L /day
Water Diuresis (Urine Osm <100 mOsm/kg)
 • Primary
Polyuria - Differential ... Diagnosis Algorithm ... 100 mOsm/kg) • Primary ... • Nephrogenic Diabetes ... #causes #nephrology
Causes of Polyuria - Differential Diagnosis Algorithm
Polyuria - Urine Output > 3L/day, Increased Urine Volume (>2ml/min)
Osmotic
Causes of Polyuria ... Differential Diagnosis Algorithm ... Deprivation Test • Primary ... #Nephrology #Differential ... #Causes
Polyuria - Differential Diagnosis Algorithm
Polyuria = >3L Urine output / 24 hours
Urine osmolality = 2 (Na
Diagnosis Algorithm ... 100 mosm/kg • Diabetes ... Insipidus • Primary ... Differential #Diagnosis #Algorithm ... #nephrology
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
Causes of Polyuria ... of Water: • Primary ... Poorly controlled diabetes ... Diabetes Insipidus ... #nephrology
Increased Urinary Frequency - Differential Diagnosis Algorithm
Non-increased urine volume (<2mL/min), Rule out polyuria
Extrinsic to Urinary Tract:
Differential Diagnosis Algorithm ... min), Rule out polyuria ... Overactive Bladder • Diabetes ... Differential #Diagnosis #Algorithm ... #Causes
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
Causes of Hypernatremia ... diuresis (see Polyuria ... 300 mmol/kg • Diabetes ... Hypernatremia #Nephrology ... #Causes
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
Ureterosigmoidostomy Urinary ... Amphotericin B - Polyuria ... Low #Potassium #Table ... #Classification ... #Causes
Causes of Chronic Kidney Disease - Differential Diagnosis Algorithm
Decreased kidney function (eGFR < 60 ml/min/1.73 m2)
Causes of Chronic ... Differential Diagnosis Algorithm ... Proteinuria) • Diabetes ... Interstitial (Sterile pyuria ... KidneyDisease #Nephrology
Classification of Diabetes Insipidus

Central or neurogenic diabetes insipidus:
 - Congenital - Structural malformations affecting the hypothalamus
Classification of ... - Acquired - Primary ... uropathy, Metabolic causes ... #Classification ... #Types #Nephrology
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
inhibitors - Primary ... - Uncontrolled diabetes ... Low #Magnesium #Table ... #Classification ... #Causes #Workup