7 results
Differential Diagnosis and Evaluation of Hyponatremia:
1) Identification of onset (acute vs. chronic)
2) Presence of symptoms (HA,
cardiac, liver, renal ... Diagnosis #EM #IM #Nephro ... #Hyponatremia #Hypovolemic ... #Euvolemic #Hypervolemic ... #Differential #Algorithm
Hyponatremia - Differential Diagnosis Algorithm
ADH Independent:
 • Tea and Toast Syndrome, Beer Potomania - Low solute
• Renal Failure ... Dependent: • Hypovolemic ... - GI losses, renal ... • Hypervolemic ... #causes #nephrology
Causes of Hyponatremia - Differential Diagnosis Algorithm
Hypovolemia, UNa > 20: 
 • Renal losses, Diuretic excess,
Causes of Hyponatremia ... Differential Diagnosis Algorithm ... Hypovolemia, UNa ... failure Hypervolemia ... #Causes #nephrology
Hyponatremia Diagnosis Algorithm
UOsm ≥ POsm - Vasopressin-Dependent
 • UNa < 20 mEq/L - Appropriate (↓ EABV)
Hyponatremia Diagnosis Algorithm ... EABV) - Consider: Hypovolemia ... solute intake, Renal ... Helbert Rondon, MD @NephroMD ... #causes #nephrology
Hypotension / Shock Differential Diagnosis Algorithm
Hypovolemic:
 • Poor oral intake
 • Hemorrhage
 • Renal loss
 •
Differential Diagnosis Algorithm ... Hypovolemic: ... Hemorrhage • Renal ... Differential #Diagnosis #Algorithm ... #shock #causes
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
time you have a case ... normal volume-based algorithm ... ≥100): SIADH, Renal ... Present (Uosm ≥100): Hypovolemia ... , Hypervolemia with
Hyponatremia - Differential Algorithm
Isotonic Hyponatremia: Hyperlipidemia, Hyperproteinemia, Recent TURP
Hypotonic Hyponatremia: 
 • Hypovolemia: Diuretics/Nephropathies, Vomiting, Diarrhea,
- Differential Algorithm ... Hyponatremia: • Hypovolemia ... polydipsia • Hypervolemia ... Syndrome, Chronic Renal ... #diagnosis #causes