- Inappropriate ADH secretion leads to retention of water and hyponatraemia
Aetiology
- Tumours
- Prostate cancer
- Small cell carcinoma of lung
- Pancreatic cancer
- Lungs
- Pneumonia
- TB
- CNS
- Meningitis
- Tumours
- Head injury
- Chronic subdural haematoma
- SLE vasculitis
- Drugs
- Chlorpropamide
- Carbamezepine
- Phenothiazines
Clinical features
- Confusion
- Nausea
- Fits
- Coma
Management
- Underlying cause
- Fluid restriction
- Dimethylchlortetracycline
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