20 results
Water Deprivation Test - Differential Diagnosis of Diabetes Insipidus (DI)
Concept of WDT: endogenous vasopressin secretion is
Water Deprivation Test ... - Differential ... Diagnosis of Diabetes ... Insipidus (DI) ... #Insipidus #DI
Hypernatremia Differential Diagnosis Algorithm - Diabetes Insipidus Workup

Step #1 - Consider the history
Step #2 - Assess
Hypernatremia Differential ... Diagnosis Algorithm - Diabetes ... Insipidus Workup ... & desmopressin test ... Algorithm #Sodium #nephrology
Causes of Polyuria - Differential Diagnosis Algorithm
Polyuria - Urine Output > 3L/day, Increased Urine Volume (>2ml/min)
Osmotic
of Polyuria - Differential ... Water Deprivation Test ... Water Deprivation Test ... Insipidus - DDAVP ... #Nephrology #Differential
Causes of Hypernatremia - Differential Diagnosis
Inadequate water intake:
 • Lack of access to water
Extrarenal hypotonic fluid
Hypernatremia - Differential ... diuresis • Central diabetes ... insipidus • Nephrogenic ... diabetes insipidus ... Diagnosis #Causes #nephrology
Polyuria - Differential Diagnosis Algorithm
Urine Output > 3L /day
Water Diuresis (Urine Osm <100 mOsm/kg)
 • Primary
Polyuria - Differential ... Polydipsia • Central Diabetes ... Insipidus • Nephrogenic ... Diabetes Insipidus ... Algorithm #causes #nephrology
Classification of Diabetes Insipidus

Central or neurogenic diabetes insipidus:
 - Congenital - Structural malformations affecting the hypothalamus
Insipidus Central ... insipidus: - ... #Diabetes #Insipidus ... Classification #Types #Nephrology ... #Diagnosis #Differential
Causes of Peripheral Weakness with Sensory Changes - Differential Diagnosis Algorithm
Radiculopathy:
 • Disc
 • Spondylosis
 •
Sensory Changes - Differential ... Carpal Tunnel • Ulnar ... Dependent): • Diabetes ... Weakness #Sensory #Neurology ... #Differential #
Diabetes Insipidus - Diagnosis Algorithm
Tests:
 • Osmolality, Urine AND/OR
 • Osmolality, Serum or Plasma AND
 •
Diabetes Insipidus ... Diagnosis Algorithm Tests ... Water deprivation test ... #Algorithm #nephrology ... #differential
Polyuria - Differential Diagnosis Algorithm
Polyuria = >3L Urine output / 24 hours
Urine osmolality = 2 (Na
Polyuria - Differential ... 100 mosm/kg • Diabetes ... Insipidus • Primary ... Polydipsia #Polyuria #Differential ... Diagnosis #Algorithm #nephrology
Urine Specific Gravity - Interpretation
Specific Gravity = Density of urine / Density of water
SG close to
Excessive hydration • Diabetes ... insipidus (deficiency ... Interpretation #diagnosis #differential ... #nephrology