8 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 ... #Differential # ... #causes #nephrology
Polyuria - Differential Diagnosis Algorithm
Polyuria = >3L Urine output / 24 hours
Urine osmolality = 2 (Na
Polyuria - Differential ... kg • Diabetes Insipidus ... • Primary Polydipsia ... #Polyuria #Differential ... #nephrology
Causes of Polyuria - Differential Diagnosis Algorithm
Polyuria - Urine Output > 3L/day, Increased Urine Volume (>2ml/min)
Osmotic
- Differential ... Diagnosis Algorithm ... Deprivation Test • Primary ... #Polyuria #Nephrology ... #Differential #
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
- Differential ... of Water: • Primary ... Diabetes Insipidus ... #Differential # ... Diagnosis #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
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
Hypernatremia - Differential ... Diagnosis Algorithm ... diuresis (see Polyuria ... kg • Diabetes Insipidus ... Hypernatremia #Nephrology
Urine chemistry tests for the diagnostic evaluation of a patient with polyuria
UOsm <100 mOsm/Kg (H2O diuresis)
a patient with polyuria ... diuresis) • Primary ... polydipsia • Diabetes insipidus ... #differential # ... diagnosis #nephrology
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 ... ≥ 3.8 pmol/L → Primary ... #DI #algorithm ... #copeptin #nephrology