Anxiety Support Group
Anxiety is a physical condition marked by intense and persistent feelings of distress, fear, angst or dread. General anxiety caused by routine day-to-day stresses usually passes quickly and is experienced by almost everyone at one time or another. However, such feelings that linger over time and are very difficult to cope with, and which lack a clear cause, may indicate...

They reassured me that if I needed ANYTHING to press a button in my hand. They are well equipped to handle anything that happens. Let your doc know you are a bit anxious and maybe they will give you something before the CT--you'll probably have to have someone go with you.
Good luck with your CT--you can do it!!!