21 results
Hypernatremia Diagnosis and Workup

Step 1 . Repeat the sodium concentration.
Step 2.  Check plasma osmolality.
NORMAL PLASMA
Hypernatremia Diagnosis ... mmol/L - true hyponatremia ... EUVOLEMIC • SIADH ... renal failure #Hypernatremia ... Workup #Algorithm #Nephrology
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Hyponatremia Differential ... Low Uric Acid → SIADH ... Rachel Stern MD #Hyponatremia ... #Differential # ... Diagnosis #Algorithm #nephrology
Pathophysiology Based Approach to Hyponatremia - Diagnostic Algorithm

Not the "classic" Volume based approach. 

#Hyponatremia #Algorithm #Pathophysiology
Based Approach to Hyponatremia ... #Hyponatremia #Algorithm ... Pathophysiology #Diagnosis #Differential ... #Nephrology #UOsm ... #Osmolality
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
Causes of Hypernatremia ... - Differential ... Diagnosis Algorithm Hypernatremia ... Hyperventilation #Hypernatremia ... #Nephrology #Differential
A lazy man's classification of hyponatremia
There are two possible approaches to the diagnosis of hyponatremia: .
classification of hyponatremia ... the diagnosis of hyponatremia ... the patient has SIADH ... #Diagnosis #Hyponatremia ... #Algorithm #Differential
Cerebral Salt Wasting vs SIADH - Pathophysiology 
1) Neurological event
2) Sodium loss from tubules
3) Naturiesis →
Salt Wasting vs SIADH ... #SaltWasting #SIADH ... Pathophysiology #diagnosis #nephrology ... #hyponatremia # ... comparison
Hyponatremia Diagnosis Algorithm
UOsm ≥ POsm - Vasopressin-Dependent
 • UNa < 20 mEq/L - Appropriate (↓ EABV)
Hyponatremia Diagnosis ... Inappropriate - Consider: SIADH ... @NephroMD #hyponatremia ... #diagnosis #differential ... algorithm #causes #nephrology
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Hypernatremia - ... 1) Check Urine Osmolality ... Extrarenal Hypernatremia ... Ingestion Renal Hypernatremia ... MatthewHoMD #Hypernatremia
Hyponatremia - Differential Diagnosis Algorithm
ADH Independent:
 • Tea and Toast Syndrome, Beer Potomania - Low solute
Hyponatremia - Differential ... insufficiency, SIADH ... thecurbsiders #Hyponatremia ... #Differential # ... Algorithm #causes #nephrology
Hyponatremia Diagnostic Algorithm
1) Check serum osmolality
2) Check urine osmolality
3) ADH Dependent - Check volume status, urine
Hyponatremia Diagnostic ... @kidney_boy #Hyponatremia ... Diagnosis #Algorithm #differential ... #hyponatremia # ... nephrology