40 results
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
normal volume-based algorithm ... : SIADH, Renal Sodium ... Insufficiency, Cerebral Salt ... differential #diagnosis #table ... #sodium #nephrology
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Differential Diagnosis Algorithm ... Osmolarity 3) Urine Sodium ... Uric Acid → renal salt ... Differential #Diagnosis #Algorithm ... #nephrology #sodium
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
Modified Hyponatremia Algorithm ... osmostat, Cerebral salt ... #Hyponatremia #Algorithm ... #diagnosis #sodium ... #nephrology
Hyponatremia Differential Diagnosis Algorithm

By Dr. Khudhur Mohammed @khudhur_moh

#Hyponatremia #Differential #Diagnosis #Algorithm #sodium #nephrology
Differential Diagnosis Algorithm ... Differential #Diagnosis #Algorithm ... #sodium #nephrology
True Hyponatremia Differential Algorithm

Instead (or in addition) of volume status examination, check urine sodium and serum
Hyponatremia Differential Algorithm ... examination, check urine sodium ... acid: - Urine sodium ... #Differential #Algorithm ... #Diagnosis #Nephrology
Causes of Hypernatremia - Differential Diagnosis
Inadequate water intake:
 • Lack of access to water
Extrarenal hypotonic fluid
insipidus Excessive salt ... Diagnosis #Causes #nephrology ... #sodium #high
Cerebral Salt Wasting vs SIADH - Pathophysiology 
1) Neurological event
2) Sodium loss from tubules
3) Naturiesis →
Cerebral Salt Wasting ... Neurological event 2) Sodium ... Pathophysiology #diagnosis #nephrology
Volume Based Approach to Hyponatremia
Hypovolemic, Serum uric acid >4
 • Urine Na <20: Extra-renal losses
 •
losses, Cerebral salt ... #Hyponatremia #algorithm ... #diagnosis #sodium ... #low #nephrology
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Diagnosis Workup Algorithm ... Hypervolemic (Excess salt ... Diagnosis #Workup #Algorithm ... #nephrology #sodium
Hyponatremia Differential Diagnosis Table

 • Step 1: Correct for hyperglycemia. Corrected Na = [(glucose - 100)/
Differential Diagnosis Table ... Differential #Diagnosis #Table ... #nephrology #sodium