A nineteen year old presents to accident and emergency following a witnessed overdose of 18 paracetamol tablets two hours prior to her admission to hospital. She suffers from anorexia nervosa and has a BMI of 15. Which of the following is true?
- She will definitely not require the antidote
- She will definitely will require the antidote
- She needs an immediate blood test and then a decision requiring antidote therapy
- She can be safely discharged
- None of the other answers are correct