I recently had to go to the CAA for a consultation, exercise ECG and 24 hour ECG. I then had the Echocardiogram done seperately. Expect to pay for all unless you have private medical insurance. If you are insured, speak to your provider first and they will let you know what is covered and which hospitals/consultants they will pay for.
You will need to arrange all appointments in advance at the CAA although there doesn't seem to be much of a waiting list.
Good luck.