8 results
Cerebral Salt Wasting vs SIADH - Pathophysiology 
1) Neurological event
2) Sodium loss from tubules
3) Naturiesis →
Neurological event 2) Sodium ... ) Naturiesis → diuresis ... → Increased urine ... diagnosis #nephrology #hyponatremia ... #comparison
Volume Based Approach to Hyponatremia
Hypovolemic, Serum uric acid >4
 • Urine Na <20: Extra-renal losses
 •
Renal losses, Cerebral ... uric acid <4 • SIADH ... Hypothyroidism, Low ... #algorithm #diagnosis ... #sodium #low #nephrology
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
normal volume-based algorithm ... Urine Na+K / serum ... , Renal Sodium loss ... can be high or low ... Insufficiency, Cerebral
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
OFF (UNa > 30): SIADH ... , Medications (diuretics ... Reset osmostat, Cerebral ... Primary polydipsia, Low ... #sodium #nephrology
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
water loss, Serum Sodium ... administration • Osmotic diuresis ... mannitol, glucosuria Low ... Urine Osmolality ... • Burns • ICU
Hyponatremia (<135 mEq/L) is a common electrolyte abnormality caused by an excess of total body water
body water in comparison ... consequence of cerebral ... release of anti-diuretic ... Measured urine sodium ... EBV #potomania #SIADH
Management of Hyponatremia
Hypertonic Saline - Only indicated if patient has severe symptoms + Na < 125
Give
Management of Hyponatremia ... doses - consider ITU ... • IF SIADH — ... #Management #algorithm ... #treatment #sodium
It is important to recognize Acute Decompensated Heart Failure (ADHF) as more than just simply a
urine output. ... excreted using diuretics ... #differential #algorithm ... #management #cardiology ... #criticalcare #icu