15th February 2025

A 30-year-old lady is brought into your A&E by ambulance.

A 30-year-old lady is brought into your A&E by ambulance. She is agitated and describes hearing voices as well as seeing people’s faces “melting”. Her family explain that she has been off work with flu-like symptoms, but they called NHS 111 due to her increasingly abnormal behaviour. When you shine your pen torch in her eyes you think there is some nystagmus, although it is hard to see as she quickly closes her eyes and looks away. What is the most likely cause of her symptoms?

Select the SINGLE most appropriate option from the list below. Select ONE option only.