1st April 2022

Joe, a 25-year-old male, presents to the GP with a 3 -week history of abdominal pain

Joe, a 25-year-old male, presents to the GP with a 3-week history of abdominal pain and episodes of passing fresh red blood with stool. On examination, the GP notes that Joe has several areas of pigmentation on his lips and palms. Given the most likely diagnosis, which is the most appropriate first-line investigation?

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