7 results
Hypernatremia Differential Diagnosis Algorithm - Diabetes Insipidus Workup

Step #1 - Consider the history
Step #2 - Assess
Diagnosis Algorithm ... - Diabetes Insipidus ... history Step #2 ... #Sodium #nephrology ... #insipidus #DI
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Hyponatremia Differential ... Diagnosis Algorithm ... Serum Osmolarity 2) ... 3) Urine Sodium ... Low Uric Acid → SIADH
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
- Differential Diagnosis ... Algorithm Hypernatremia ... water loss, Serum Sodium ... 300 mmol/kg • Diabetes ... Insipidus Hypodipsia
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
1) Check Urine ... renal mechanism 2) ... • Euvolemic: Diabetes ... insipidus (central ... #nephrology #sodium
Hypernatremia - Differential Diagnosis and Treatment
Hypernatremia is almost always due to unreplaced water loss (free water
osm (in DI; high ... water unavailable 2) ... post-obstructive 3) Diabetes ... Insipidus: neurogenic ... #nephrology #sodium
Primary Polydipsia
Definition: Excessive volitional water intake
Epidemiology:
 • 6-20% of patients with psychiatric disorders - Most commonly
occurs in only 2- ... Diagnosis: Diabetes ... Pseudohyponatremia, SIADH ... Osm, Serum Sodium ... , Urine Sodium
Diabetes Insipidus - Diagnosis Algorithm
Tests:
 • Osmolality, Urine AND/OR
 • Osmolality, Serum or Plasma AND
 •
Diabetes Insipidus ... - Diagnosis Algorithm ... Plasma AND • Sodium ... 1-2 hrs post administration ... #Insipidus #Diagnosis