16 results
hyponatremia differential management treatment low table workup abg acid acidbase base bloodgas cancer cerebral comparison disorders evaluation gas hypernatremia hypotonic
Physiologic Approach to Hypotonic Hyponatremia The next time you have a case of hypotonic hyponatremia, give the
time you have a case ... algorithm Urine ... , Renal Sodium loss ... #differential #diagnosis ... #nephrology
Volume Based Approach to Hyponatremia Hypovolemic, Serum uric acid >4 • Urine Na <20: Extra-renal losses •
Volume Based Approach ... uric acid <4 • SIADH ... #Hyponatremia #algorithm ... #diagnosis #sodium ... #low #nephrology
Hyponatremia Diagnosis Algorithm UOsm ≥ POsm - Vasopressin-Dependent • UNa < 20 mEq/L - Appropriate (↓ EABV)
Hyponatremia Diagnosis ... Algorithm UOsm ... Inappropriate - Consider: SIADH ... polydipsia, Low solute ... #causes #nephrology
Cerebral Salt Wasting vs SIADH - Pathophysiology 1) Neurological event 2) Sodium loss from tubules 3) Naturiesis →
Salt Wasting vs SIADH ... Neurological event 2) Sodium ... reabsorption 5) ↓ Na ... Pathophysiology #diagnosis ... #nephrology #hyponatremia
Management of SIADH Treat underlying cause: • Causes can include pain, primary lung pathology, post-operative phenomenon, medications,
Management of SIADH ... volume overload ... promoting passive sodium ... osmolality < 538 AND UNa ... #hyponatremia #nephrology
Hyponatremia - Differential Diagnosis Algorithm Hypovolemic - Give volume Hypervolemic (Edematous) - Look for and treat underlying cause
Algorithm Hypovolemic ... - Give volume Hypervolemic ... , SSRIs) - SIADH ... #Algorithm #diagnosis ... #nephrology #sodium
Modified Hyponatremia Algorithm Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants Hypotonic Hyponatremia: • ADH ON (UOsm > 100):
- RAAS ON (UNa ... > 30): SIADH, Medications ... polydipsia, Low solute ... #diagnosis #sodium ... #nephrology
SIADH Treatment Options 1. Treat underlying cause of SIADH: Pain, Primary lung pathology, Post-operative phenomenon, Medications, Basically
Primary lung pathology ... administered • This can cause ... volume overload ... promoting passive sodium ... #hyponatremia #nephrology
Hyponatremia - Diagnostic Evaluation Algorithm Step 1: Consider whether Posm may actually be normal or elevated Step 2:
Evaluation Algorithm ... Step 3: Assess volume ... status and measure UNa ... tests Step 5: If SIADH ... considered likely, the cause
Hypernatremia Diagnosis and Workup Step 1 . Repeat the sodium concentration. Step 2. Check plasma osmolality. NORMAL PLASMA
Hypernatremia Diagnosis ... Repeat the sodium ... EUVOLEMIC • SIADH ... #Workup #Algorithm ... #Nephrology
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