14 results
Hypernatremia Differential Diagnosis Algorithm - Diabetes Insipidus Workup

Step #1 - Consider the history
Step #2 - Assess
Algorithm - Diabetes Insipidus ... Management #Algorithm #Sodium ... #nephrology #insipidus ... #DI
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 Hypernatremia - Differential Diagnosis
Inadequate water intake:
 • Lack of access to water
Extrarenal hypotonic fluid
Central diabetes insipidus ... Nephrogenic diabetes insipidus ... Causes #nephrology #sodium
Central vs Nephrogenic Diabetes Insipidus - Desmopressin Challenge
Give desmopressin (intranasal, SQ, IV) and monitor UOsm every
Nephrogenic Diabetes Insipidus ... Nephrogenic #Diabetes #Insipidus ... #DI #Desmopressin
Etiologies of Hypernatremia - Differential Diagnosis
GI losses / Insensible losses
Sodium Overload
Transcellular Movement of Water
Central Diabetes Insipidus
Insensible losses Sodium ... Central Diabetes Insipidus ... Nephrogenic Diabetes Insipidus
Hypernatremia - Diagnostic Evaluation Algorithm
Step 1: Consider history. Most patients presenting with hypernatremia are either very
If patient has DI ... Evaluation #Algorithm #Sodium
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
water loss, Serum Sodium ... kg • Diabetes Insipidus
Inherited Defects in Kidney Tubule Epithelial Cells

Renal glucosuria - Na+-dependent glucose cotransporter
Cystinuria - Amino acid transporter
Bartter
cell epithelial sodium ... of epithelial sodium ... Nephrogenic diabetes insipidus
Two-step Copeptin algorithm for differential diagnosis of Diabetes Insipidus (DI)

Baseline Copeptin < 21.4 pmol/L:
 • Arginine-stimulated
diagnosis of Diabetes Insipidus ... (DI) Baseline ... partial Central DI ... #Diabetes #Insipidus ... #DI #algorithm
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Euvolemic: Diabetes insipidus ... Algorithm #nephrology #sodium