25 results
Water Deprivation Test - Differential Diagnosis of Diabetes Insipidus (DI)
Concept of WDT: endogenous vasopressin secretion is
Diagnosis of Diabetes Insipidus ... (DI) Concept of ... capacity #Diabetes #Insipidus ... #DI #Water #Deprivation
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
Causes of Polyuria ... Diabetes Insipidus ... • Nephrogenic DI ... Hypercalcemia Polyuria ... EricsMedicalLectures/ #Polyuria
Polyuria - Differential Diagnosis Algorithm
Urine Output > 3L /day
Water Diuresis (Urine Osm <100 mOsm/kg)
 • Primary
Polyuria - Differential ... Central Diabetes Insipidus ... Nephrogenic Diabetes Insipidus ... solute load #Polyuria
Polyuria - Differential Diagnosis
Solute Diuresis
 • Na intake/saline
 • Glucosuria: Hyperglycemia, SGLT-2 inhibitors
 • Urea: Exogenous
Polyuria - Differential ... Polydipsia • Central DI ... @kdjhaveri #Polyuria
Causes of Polyuria - Differential Diagnosis Algorithm
Polyuria - Urine Output > 3L/day, Increased Urine Volume (>2ml/min)
Osmotic
Causes of Polyuria ... Diagnosis Algorithm Polyuria ... Central Diabetes Insipidus ... Nephrogenic Diabetes Insipidus ... #Polyuria #Nephrology
Hypernatremia Differential Diagnosis Algorithm - Diabetes Insipidus Workup

Step #1 - Consider the history
Step #2 - Assess
Algorithm - Diabetes Insipidus ... Sodium #nephrology #insipidus ... #DI
Polyuria - Differential Diagnosis Algorithm
Polyuria = >3L Urine output / 24 hours
Urine osmolality = 2 (Na
Polyuria - Differential ... Diagnosis Algorithm Polyuria ... kg • Diabetes Insipidus ... Primary Polydipsia #Polyuria
Diabetes Insipidus vs Syndrome of Inappropriate ADH (SIADH) - Comparison Table

Diabetes Insipidus - Inadequate ADH
SIADH -
Diabetes Insipidus ... Table Diabetes Insipidus ... #Diabetes #Insipidus ... Pathophysiology #Signs
Central vs Nephrogenic Diabetes Insipidus - Desmopressin Challenge
Give desmopressin (intranasal, SQ, IV) and monitor UOsm every
Nephrogenic Diabetes Insipidus ... Nephrogenic #Diabetes #Insipidus ... #DI #Desmopressin
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
diuresis (see Polyuria ... kg • Diabetes Insipidus