12 results
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
Algorithm Hypertonic ... Urologic irrigants Hypotonic ... OFF (UNa > 30): SIADH ... #Algorithm #diagnosis ... #sodium #nephrology
Pathophysiology of hypotonic hyponatremia

by Helbert Rondon, MD @NephroMD

#hypotonic #hyponatremia #nephrology #algorithm #Pathophysiology
Pathophysiology ... of hypotonic hyponatremia ... #hyponatremia # ... nephrology #algorithm ... #Pathophysiology
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
normal volume-based algorithm ... restriction alone in SIADH ... Present (Uosm ≥100): SIADH ... , Renal Sodium loss ... #nephrology
Hyponatremia - Differential Algorithm
Isotonic Hyponatremia: Hyperlipidemia, Hyperproteinemia, Recent TURP
Hypotonic Hyponatremia: 
 • Hypovolemia: Diuretics/Nephropathies, Vomiting, Diarrhea,
Algorithm Isotonic ... , Recent TURP Hypotonic ... • Euvolemia: SIADH ... diagnosis #causes #nephrology ... #sodium #low
Cerebral Salt Wasting vs SIADH - Pathophysiology 
1) Neurological event
2) Sodium loss from tubules
3) Naturiesis →
Salt Wasting vs SIADH ... - Pathophysiology ... Neurological event 2) Sodium ... #diagnosis #nephrology ... #hyponatremia #
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Hyponatremia Differential ... Diagnosis Algorithm ... Osmolarity 3) Urine Sodium ... Low Uric Acid → SIADH ... #nephrology #sodium
Hypernatremia Diagnosis and Workup

Step 1 . Repeat the sodium concentration.
Step 2.  Check plasma osmolality.
NORMAL PLASMA
Hypernatremia Diagnosis ... Repeat the sodium ... EUVOLEMIC • SIADH ... Diagnosis #Workup #Algorithm ... #Nephrology
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Hyponatremia - Differential ... Diagnosis Algorithm ... , SSRIs) - SIADH ... #diagnosis #nephrology ... #sodium
Volume Based Approach to Hyponatremia
Hypovolemic, Serum uric acid >4
 • Urine Na <20: Extra-renal losses
 •
Based Approach to Hyponatremia ... uric acid <4 • SIADH ... SatyaPatelMD #Volume #Hyponatremia ... #algorithm #diagnosis ... #sodium #low #nephrology
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
Differential Diagnosis Algorithm ... water loss, Serum Sodium ... 300 mmol/kg • Hypertonic ... #Nephrology #Differential ... #Diagnosis #Algorithm