1st April 2022

Jack, a 26-year-old male presents to A+E with his 3rd moderate flare of UC in the last 12 months

Jack, a 26-year-old male presents to A+E with his 3rd moderate flare of UC in the last 12 months. The doctors feel that his maintenance drug regime (Oral Mesalazine) isn’t effective enough and want to start him on Azathioprine. 

What one blood test must be ordered first?

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