Therapy

Dehydration

• Give 0.9% saline - avoid giving fluid too rapidly. ^c  
  Aim to correct sodium levels at 0.5 mmol/l per hour with a maximum rise of 12 mmol in 24 hours. ^d
  
• Monitor urea and electrolytes regularly. ^d

No dehydration or oedema

• Restrict water intake to 1.5 litres /day ^d followed by 1l/day if no response ^d  
  Aim to correct sodium levels at 0.5 mmol/l per hour with a maximum rise of 12 mmol in 24 hours. ^d
• Consider demeclocylcine 300 mg eight hourly if no response. ^d

Oedema

• Give frusemide ^b and monitor fluid balance carefully.