18 results
Hypernatremia Differential Diagnosis Algorithm - Diabetes Insipidus Workup

Step #1 - Consider the history
Step #2 - Assess
Hypernatremia Differential ... Diagnosis Algorithm ... Workup Step ... Management #Algorithm #Sodium ... #nephrology #insipidus
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Differential Diagnosis ... • Euvolemic (Low ... Euvolemic: Diabetes insipidus ... Diagnosis #Workup ... #sodium
True Hyponatremia Differential Algorithm

Instead (or in addition) of volume status examination, check urine sodium and serum
Differential Algorithm ... low, uric acid ... #Differential # ... Algorithm #Diagnosis ... #Nephrology
Causes of Hypernatremia - Differential Diagnosis
Inadequate water intake:
 • Lack of access to water
Extrarenal hypotonic fluid
Causes of Hypernatremia ... - Differential ... Diagnosis Inadequate ... #Differential # ... #nephrology #sodium
Etiologies of Hypernatremia - Differential Diagnosis
GI losses / Insensible losses
Sodium Overload
Transcellular Movement of Water
Central Diabetes Insipidus
- Differential ... Diagnosis GI losses ... Insensible losses Sodium ... Neurosurgery - Trauma ... sensitivity in kidneys
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Hyponatremia Differential ... Diagnosis Algorithm ... #Differential # ... #nephrology #sodium ... #low #uricacid
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
- Differential ... water loss, Serum Sodium ... mannitol, glucosuria Low ... kg • Diabetes Insipidus ... #Nephrology #Differential
Inherited Defects in Kidney Tubule Epithelial Cells

Renal glucosuria - Na+-dependent glucose cotransporter
Cystinuria - Amino acid transporter
Bartter
Inherited Defects in Kidney ... of epithelial sodium ... Nephrogenic diabetes insipidus ... #Nephrology #Diagnosis ... #Differential #
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
: SIADH, Renal Sodium ... can be high or low ... #differential # ... diagnosis #table ... #sodium #nephrology
Hypernatremia - Differential Diagnosis and Treatment
Hypernatremia is almost always due to unreplaced water loss (free water
Differential Diagnosis ... The differential ... , Dehydration: neurologic ... post-obstructive 3) Diabetes Insipidus ... #sodium