9 results
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
restriction alone in SIADH ... or Ineffective (UNa ... (Uosm ≥100): SIADH ... , Renal Sodium loss ... solute intake, UNa
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
Hyponatremia: • ADH ... - RAAS ON (UNa ... - RAAS OFF (UNa ... > 30): SIADH, Medications ... Algorithm #diagnosis #sodium
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 ... reabsorption 5) ↓ Na ... #SaltWasting #SIADH
Management of SIADH
Treat underlying cause:
 • Causes can include pain, primary lung pathology, post-operative phenomenon, medications,
Management of SIADH ... pain, primary lung ... promoting passive sodium ... osmolality < 538 AND UNa ... antagonists: • Blocks ADH
SIADH Treatment Options
1. Treat underlying cause of SIADH: Pain, Primary lung pathology, Post-operative phenomenon, Medications, Basically
SIADH Treatment ... Pain, Primary lung ... promoting passive sodium ... osmolality < 538 AND UNa ... vaptans) • Blocks ADH
Hyponatremia - Differential Diagnosis by Mechanism
Decr Blood Pressure (“Decr Effective Circulating Volume”) 
 - Volume depletion
Inappropriate ADH ... secretion (SIADH ... carcinoma of the lung ... insufficiency ADH ... Table #Causes #Sodium
Hyponatremia (<135 mEq/L) is a common electrolyte abnormality caused by an excess of total body water
the total body sodium ... concentration (UNa ... intravascular volume; UNa ... EBV #potomania #SIADH ... #Thiazides #UNAa
Management of Hyponatremia
Hypertonic Saline - Only indicated if patient has severe symptoms + Na < 125
Give
Heart Failure - Add ... Add Diuretics, Consider ... Normalizes in SIADH ... • IF SIADH — ... algorithm #treatment #sodium
Hyperacute Hypoxemia - Workup and Management
Differential Diagnosis: Aspiration, Flash Pulmonary Edema, Mucous Plugging, Bronchospasm, Pulmonary Embolism,
Alveolar Hemorrhage (DAH ... (JVP, edema), Lung ... Exam, POCUS (B-lines ... , lung sliding) ... • Aspiration/PNA