Which is not a feature of SIADH?: (A) Euvolemia, (B) Urine Osmolality > 100 mosm/ kg, (C) Low urine sodium, (D) Treatment is fluid restriction
Answer is C. SIADH - Syndrome of inappropriate ADH secretion: * Euvolemia * Urine osmolality > 100 mosm/kg * High urine sodium (>20-30 meq/L) * Treatment is water restriction.