Vicky Phelan has first CT scan to find out if treatment is working

The women's health advocate has been receiving treatment in America since the beginning of the year

Vicky Phelan begins tests today to find out if treatment has had a positive effect. 

Always good-natured, Vicky Phelan began documenting what will be a day filled with nerves in a hospital car park as she queued up for a security car search. 

Set to the tune of U2's 'Still Haven't Found What I'm Looking For', the comments section on her Instagram post began to fill immediately with well-wishes from followers all over Ireland.