23rd July 2020

You are an FY2 reviewing an 82-year-old woman, Mrs Price, with atrial fibrillation

You are an FY2 reviewing an 82-year-old woman, Mrs Price, with atrial fibrillation. She takes bisoprolol and digoxin therapy to control her permanent AF. She is brought in by ambulance as she has felt intensely nauseous and had some diarrhoea. She complains of “seeing yellow”. Her husband reports that she has been getting increasingly forgetful and confused over the prior months.

What is the most likely cause of her symptoms?

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