8 results
Hypernatremia Differential Diagnosis Algorithm - Diabetes Insipidus Workup

Step #1 - Consider the history
Step #2 - Assess
Hypernatremia Differential ... Diagnosis Algorithm ... - Diabetes Insipidus ... Workup Step ... #Sodium #nephrology
True Hyponatremia Differential Algorithm

Instead (or in addition) of volume status examination, check urine sodium and serum
True Hyponatremia ... Differential Algorithm ... low, uric acid high ... high and uric acid ... #Diagnosis #Nephrology
Causes of Hypernatremia - Differential Diagnosis
Inadequate water intake:
 • Lack of access to water
Extrarenal hypotonic fluid
Causes of Hypernatremia ... insipidus • Nephrogenic ... diabetes insipidus ... Diagnosis #Causes #nephrology ... #sodium #high
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Algorithm 1) ... • Euvolemic: Diabetes ... insipidus (central ... #Algorithm #nephrology ... #sodium
Hypernatremia Diagnosis and Workup

Step 1 . Repeat the sodium concentration.
Step 2.  Check plasma osmolality.
NORMAL PLASMA
and Workup Step ... Repeat the sodium ... < 285 mmol/L - true ... #Diagnosis #Workup ... #Algorithm #Nephrology
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
water loss, Serum Sodium ... >145 mmol/L High ... 300 mmol/kg • Diabetes ... Insipidus Hypodipsia ... #Nephrology #Differential
Primary Polydipsia
Definition: Excessive volitional water intake
Epidemiology:
 • 6-20% of patients with psychiatric disorders - Most commonly
Diagnosis: Diabetes ... Insipidus, Impaired ... intoxication Initial Workup ... , Urine Sodium ... diagnosis #management #nephrology
Hypernatremia - Differential Diagnosis and Treatment
Hypernatremia is almost always due to unreplaced water loss (free water
urine osm (in DI; high ... post-obstructive 3) Diabetes ... Insipidus: neurogenic ... Treatment #management #nephrology ... #sodium