16 results
Hyponatremia - Differential Diagnosis Algorithm
ADH Independent:
 • Tea and Toast Syndrome, Beer Potomania - Low solute
Hyponatremia - Differential ... Syndrome, Beer Potomania ... Dependent: • Hypovolemic ... #Differential # ... Algorithm #causes #nephrology
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
Modified Hyponatremia ... Algorithm Hypertonic Hyponatremia ... ON (UNa < 30): Hypovolemia ... solute intake, Beer potomania ... diagnosis #sodium #nephrology
Causes of Hyponatremia - Differential Diagnosis Algorithm
Hypovolemia, UNa > 20: 
 • Renal losses, Diuretic excess,
Causes of Hyponatremia ... - Differential ... Cardiac failure #Hyponatremia ... #Differential # ... Algorithm #Causes #nephrology
Hyponatremia - Differential Algorithm
Isotonic Hyponatremia: Hyperlipidemia, Hyperproteinemia, Recent TURP
Hypotonic Hyponatremia: 
 • Hypovolemia: Diuretics/Nephropathies, Vomiting, Diarrhea,
Hyponatremia - Differential ... : • Hypovolemia ... Euvolemia: SIADH, Beer Potomania ... #Differential # ... diagnosis #causes #nephrology
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Hyponatremia - Differential ... Diagnosis Algorithm Hypovolemic ... Polydipsia - Beer Potomania ... #Differential # ... Algorithm #diagnosis #nephrology
Cerebral Salt Wasting vs SIADH - Pathophysiology 
1) Neurological event
2) Sodium loss from tubules
3) Naturiesis →
4) Hypovolaemia ... Subclinical volume expansion ... urine volume, hypovolaemia ... Pathophysiology #diagnosis #nephrology ... #hyponatremia #
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
Present (Uosm ≥100): Hypovolemia ... , Hypervolemia with ... solute intake (Beer potomania ... #differential # ... table #sodium #nephrology
True Hyponatremia Differential Algorithm

Instead (or in addition) of volume status examination, check urine sodium and serum
True Hyponatremia ... Differential Algorithm ... uric acid high in hypovolemic ... #Differential # ... Algorithm #Diagnosis #Nephrology
Hyponatremia Diagnosis Algorithm
UOsm ≥ POsm - Vasopressin-Dependent
 • UNa < 20 mEq/L - Appropriate (↓ EABV)
Hyponatremia Diagnosis ... EABV) - Consider: Hypovolemia ... @NephroMD #hyponatremia ... #diagnosis #differential ... algorithm #causes #nephrology
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Causes of Hyponatremia ... - Differential ... Malignancy True hypovolemia ... osmole intake #Hyponatremia ... #Nephrology #Differential