3rd July 2023

A 23-year-old female is referred to see you in the dermatology clinic. She reports she has suffered with worsening cystic acne

A 23-year-old female is referred to see you in the dermatology clinic. She reports she has suffered with worsening cystic acne for the last two years. It is causing her significant distress and affecting her overall confidence.

On examination, she has visible closed comedonal and pustular lesions along her jawline and upper part of her neck, with some visible scarring in this area and on her cheeks. She has read about isotretinoin and is keen to start it.

What is the most important test to carry out in this patient prior to starting isotretinoin?

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