I have watched my kids have more than 10 GAs.
The team know what they are doing, and will steer you through the process making it all seem matter of fact and normal on the day. This is best for your Dd.
The anaesthetist will come and talk to you on the ward. The anaesthetist stays with your Dd throughout the operation, monitoring blood gases etc. When you talk to the anaesthetist ask about them putting in pain relief before your Dd comes round: will they give her anything?
They bring them round quite quickly and will call you once your Dd is ready.
When you see her, encourage deep breathing, in through the nose, out through the mouth. The more oxygen she takes in, the quicker the anaesthetic leaves her body.
The operation may well take longer than the Dr tells you. Surgeons tend to time their own involvement. In reality, once your Dd is unconscious the anaesthetist will take time putting a line in, getting the anaesthetic to the right level etc. And afterwards the more junior Drs and nursing team may spend time cleaning up,applying dressings or whatever. So do not panic once the time is up. Honestly, sometimes we waited an extra hour or so.
There will be a lot of waiting around. Have a new distraction for your Dd, film on iPad, new activity or toy that is suitable, etc.
Take headphones to spare other patients!
We didn’t eat or drink in front of Dc when they were nil by mouth and waiting. Make sure you have a good meal, in secret, beforehand because being hungry won’t help you to support her.
Go for a walk, talk to friends on phone, read, do your admin, watch film on iPad, take puzzle book. What would you do on a long train or plane journey?
Good luck OP.
It isn’t as bad as you think it will be in advance.
But I won’t lie: seeing your child unconscious on a trolley is very emotional. I always cried on my way out of the anaesthetic room.
But you quickly remind yourself that they are in expert ha Ds, and head off to the coffee shop.