Hey Amy,
The actual bronch will be quick. It's the prep time that takes the longest. But expect 30 minutes to an hour.
Tune-ups typically take three weeks, but can vary. Are you going home on picc lines, or staying in the whole time?
Remember to ask the doctor to keep the peripheral ivs in. If the iv meds need to have levels run, using the ivs for meds and the picc for blood draws will prevent many unnecessary pokes!
Also, the very first day, ask to be put on a med schedule that will be easy for you to follow at home. This will make it much easier to transition to home care.
Don't forget your Lysol wipes. I go through a ton because I don't use them for multiple surfaces. I use one for bedrails, another for the phone, another for the sink, etc. I read an article about disinfecting wipes actually spreading germs if they are overused. It's worth the extra $4.00 to buy an extra container!
Good luck to you and your kiddos!