13 results
Causes of Hypernatremia - Differential Diagnosis
Inadequate water intake:
 • Lack of access to water
Extrarenal hypotonic fluid
Causes of Hypernatremia ... - Differential ... • Nephrogenic ... Diagnosis #Causes #nephrology ... #sodium #high
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Differential Diagnosis ... renal mechanism 2) ... Euvolemic: Diabetes insipidus ... (central or nephrogenic ... #sodium
Hypernatremia Differential Diagnosis Algorithm - Diabetes Insipidus Workup

Step #1 - Consider the history
Step #2 - Assess
Hypernatremia Differential ... history Step #2 ... #Management #Algorithm ... #Sodium #nephrology ... #insipidus #DI
Hypernatremia - Differential Diagnosis and Treatment
Hypernatremia is almost always due to unreplaced water loss (free water
, Dehydration: neurologic ... water unavailable 2) ... Osmotic Diuresis ... : neurogenic, nephrogenic ... #nephrology #sodium
Etiologies of Hypernatremia - Differential Diagnosis
GI losses / Insensible losses
Sodium Overload
Transcellular Movement of Water
Central Diabetes Insipidus
Etiologies of Hypernatremia ... - Differential ... Insensible losses Sodium ... #Differential # ... Diagnosis #Table
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
- Differential ... water loss, Serum Sodium ... administration • Osmotic diuresis ... kg • Diabetes Insipidus ... #Nephrology #Differential
Diuretics and Agents Regulating Renal Excretion

Carbonic Anhydrase Inhibitors (Acetazolamide, Dichlorphenamide)
 • Glaucoma
 • Epilepsy
 • Altitude
irrigation • Management ... nephrotic syndrome • Hyponatremia ... and euvolemic hyponatremia ... #Nephrology #Pharmacology ... #Medications #Table
Inherited Defects in Kidney Tubule Epithelial Cells

Renal glucosuria - Na+-dependent glucose cotransporter
Cystinuria - Amino acid transporter
Bartter
cell epithelial sodium ... of epithelial sodium ... diabetes insipidus ... #Diagnosis #Differential ... #Table
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
: SIADH, Renal Sodium ... loss (diuretics ... #differential # ... diagnosis #table ... #sodium #nephrology
Urine chemistry tests for the diagnostic evaluation of a patient with polyuria
UOsm <100 mOsm/Kg (H2O diuresis)
polydipsia • Diabetes insipidus ... (central or nephrogenic ... 300 mOsm/Kg • 2 ... #polyuria #differential ... #diagnosis #nephrology