My mother had to use the ativan. It helped.
Tell Buzz that the techs are right there watching. Once mom started to scratch her nose and Marshall started yelling, "Rosemary!! What are you doing? put your hand down!" I walked over to the curtain and asked what was wrong and he told me. It made me feel a little better knowing what was happening. By any chance, have you asked if you can go in with him to see what they do before they begin? It helped me in doing so. Anyone who can endure being bolted to the table, repeatedly, is my hero. Gave me a different perspective as a caaregiver.
Good luck to Buzz and Bill!