31st January 2024

A 56-year-old man presents to her GP with a 3-day history of diarrhoea.

A 56-year-old man presents to her GP with a 3-day history of diarrhoea. He is unsure of the cause but recalls having sushi with his colleagues 6 days ago. He is unsure if the diarrhoea is related to the food or his medication. He is currently taking Ramipril 2.5mg OD, sitagliptin 100mg OD, Paracetamol 1g QDS PRN, and newly started Colchicine 500 micrograms QDS. Which is the most likely cause of his diarrhoea? 

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