Cerebral Salt Wasting vs SIADH - Pathophysiology 

1) Neurological event

2) Sodium loss from tubules

3) Naturiesis → diuresis → hypovolaemia

4) Hypovolaemia → ADH → water reabsorption

5) ↓ Na+ → Subclinical volume expansion



→ Increased urine volume, hypovolaemia

→ treat with fluid therapy

→ rare



- Dr. Sinead Stoneman @Stones__



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