11 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 Hypokalemia - Differential Diagnosis Algorithm
Defining the cause of hypokalemia starts by measuring urinary K
Hypokalemia - Differential ... Diagnosis Algorithm ... either secondary or primary ... Ureterosigmoidostomy, Diabetic ... #causes #nephrology
Classification of Diabetes Insipidus

Central or neurogenic diabetes insipidus:
 - Congenital - Structural malformations affecting the hypothalamus
Classification of ... - Acquired - Primary ... #Classification ... #Types #Nephrology ... #Diagnosis #Differential
Polyuria - Differential Diagnosis Algorithm
Polyuria = >3L Urine output / 24 hours
Urine osmolality = 2 (Na
Polyuria - Differential ... Diagnosis Algorithm ... 100 mosm/kg • Diabetes ... Insipidus • Primary ... #nephrology
Causes of Polyuria - Differential Diagnosis Algorithm
Polyuria - Urine Output > 3L/day, Increased Urine Volume (>2ml/min)
Osmotic
of Polyuria - Differential ... Diagnosis Algorithm ... Deprivation Test • Primary ... #Polyuria #Nephrology ... #Differential #
Hyperkalemia: Diagnostic algorithm
Decreased renal potassium excretion
 • Acute renal failure
 • Chronic renal failure
 • Drugs
Increased
Hyperkalemia: Diagnostic algorithm ... • Drugs • Diabetic ... Renin High: • Primary ... #nephrology #potassium ... #differential
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
inhibitors - Primary ... - Uncontrolled diabetes ... Hypomagnesemia #Differential ... Low #Magnesium #Table ... #Classification
Two-step Copeptin algorithm for differential diagnosis of Diabetes Insipidus (DI)

Baseline Copeptin < 21.4 pmol/L:
 • Arginine-stimulated
Two-step Copeptin algorithm ... for differential ... diagnosis of Diabetes ... ≥ 3.8 pmol/L → Primary ... #copeptin #nephrology
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
normal volume-based algorithm ... water intake (Primary ... #Hyponatremia #differential ... #diagnosis #table ... #sodium #nephrology
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
Metabolic Alkalosis - Urinary ... Chloride Algorithm ... metabolic acidosis • Diabetic ... Chloride #urine #Algorithm ... #nephrology #differential