29 results
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Hyponatremia Differential ... Diagnosis Algorithm ... Utilizing Uric Acid ADH ... Low Uric Acid → SIADH ... Rachel Stern MD #Hyponatremia
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
Modified Hyponatremia ... Hyponatremia: Hyperglycemia ... irrigants Hypotonic Hyponatremia ... OFF (UNa > 30): SIADH ... #sodium #nephrology
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Hyponatremia - Differential ... treat underlying cause ... , SSRIs) - SIADH ... UnremarkableLab #Hyponatremia ... diagnosis #nephrology #sodium
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
Causes of Hypernatremia ... Hypernatremia ... water loss, Serum Sodium ... kg • Diabetes Insipidus ... Hyperventilation #Hypernatremia
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
Approach to Hypotonic Hyponatremia ... of hypotonic hyponatremia ... normal volume-based algorithm ... Urine Na+K / serum ... Physiologic #Hypotonic #Hyponatremia
Cerebral Salt Wasting vs SIADH - Pathophysiology 
1) Neurological event
2) Sodium loss from tubules
3) Naturiesis →
Salt Wasting vs SIADH ... Neurological event 2) Sodium ... Hypovolaemia → ADH ... → Increased urine ... diagnosis #nephrology #hyponatremia
Etiologies of Hypernatremia - Differential Diagnosis
GI losses / Insensible losses
Sodium Overload
Transcellular Movement of Water
Central Diabetes Insipidus
Etiologies of Hypernatremia ... Insensible losses Sodium ... (Decr ADH production ... DrEricStrong #Hypernatremia ... Diagnosis #Table #Causes
Hyponatremia - Differential Diagnosis Algorithm
ADH Independent:
 • Tea and Toast Syndrome, Beer Potomania - Low solute
Hyponatremia - Differential ... ADH Independent ... insufficiency, SIADH ... thecurbsiders #Hyponatremia ... #causes #nephrology
Primary Polydipsia
Definition: Excessive volitional water intake
Epidemiology:
 • 6-20% of patients with psychiatric disorders - Most commonly
• Symptomatic hyponatremia ... with symptomatic hyponatremia ... with suppressed ADH ... Pseudohyponatremia, SIADH ... , Urine Sodium
Hyponatremia Treatment Algorithm

CHF, Cirrhosis - Fluid restriction
SIADH - Fluid restriction
 - Consider salt tablets if etiology
Hyponatremia Treatment ... Fluid restriction SIADH ... status turns off ADH ... DrEricStrong #Hyponatremia ... #Treatment #Algorithm