Education
McKenna attended medical school at University College Cork, Ireland graduating in 1995. After qualifying as a general practitioner in 1999, McKenna moved to the United Kingdom and practised in Notting Hill, London for three years. She then set up a General Practice practice in Ireland while continuing sessional work at Harley Street.
In the public sector, she acts as a clinical assistant in sexual health and dermatology for the National Health Service and has worked at a number of London teaching hospitals.
