1st April 2022

A 24-year-old man attends an ophthalmology outpatient appointment

A 24-year-old man attends an ophthalmology outpatient appointment. He is currently being treated for acute iritis. He reports a history of lower back pain which is at its worst in the mornings and eases throughout the day. The doctor arranges some further investigations.

Which of the following should be tested for?

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