159 results
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Differential Diagnosis Algorithm ... Osmolarity 3) Urine Sodium ... Acid → SIADH - High ... Uric Acid → renal salt ... #nephrology #sodium
Causes of Hypernatremia - Differential Diagnosis
Inadequate water intake:
 • Lack of access to water
Extrarenal hypotonic fluid
Causes of Hypernatremia ... insipidus Excessive salt ... Differential #Diagnosis #Causes ... #nephrology #sodium ... #high
True Hyponatremia Differential Algorithm

Instead (or in addition) of volume status examination, check urine sodium and serum
Hyponatremia Differential Algorithm ... acid: - Urine sodium ... low, uric acid high ... high and uric acid ... #Differential #Algorithm
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
time you have a case ... normal volume-based algorithm ... diuresis can be high ... Insufficiency, Cerebral Salt ... differential #diagnosis #table
Hyponatremia - Differential Diagnosis by Mechanism
Decr Blood Pressure (“Decr Effective Circulating Volume”) 
 - Volume depletion
- Cerebral salt ... Differential #Diagnosis #Table ... #Causes #Sodium
Causes of Nephrolithiasis - Differential Diagnosis Algorithm
Radio-opaque - Calcium-containing - 90% of stones
Radiolucent - Non-calcium 10%
Causes of Nephrolithiasis ... Differential Diagnosis Algorithm ... salt intake • ... Differential #Diagnosis #Algorithm ... #Causes
Hypermagnesemia - Etiologies by Mechanism
Renal Failure 
Excessive Mg Administration 
 - Massive PO intake
Overdose of Epsom salts ... Differential #Diagnosis #High ... #Magnesium #Table ... #Causes #Management
Orthostatic Hypotension Management Algorithm
 • Hypovolemic?  Yes → Resuscitate
 • Volume Overloaded? No → Fludrocortisone
Hypotension Management Algorithm ... intake, Increase salt ... → Decrease in sodium ... tension of the thigh ... Hypotension #Management #Algorithm
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
Causes of Hypernatremia ... Differential Diagnosis Algorithm ... water loss, Serum Sodium ... >145 mmol/L High ... #Causes
Lactated Ringers (LR) vs Normal Saline (NS) - Comparison

Composition of LR:
 • Sodium 130 mEq/L
 •
109 mEq/L • Sodium ... 6.5 • SMART/SALT-ED ... shift • Saline Causes ... densa receives high ... • Saline May Cause