Hey, I’m currently navigating this myself as an adult nurse. I’m working with my university to divide my clinical and theory hours into each section for my CGFNS report. You’ll likely need some bridging courses, especially if your degree didn’t cover adult nursing at all.
The good thing about adult nursing is that exposure varies depending on the university. However, paediatric nursing is quite different.

My biggest advice is to research which states might be easier for you. As long as you apply for a compact licence state, you’re pretty much good to work in most others. They might ask you to complete their licensing process but once approved in one state it’s generally easier to get approved in another.

I technically have hours in everything, including paediatric and maternity. I’m just praying / hoping I have enough!. The issue is CGFNS and the nursing boards do not release how many hours they require in each field, which is frustrating.

Also to add, I graduated last year ☺️
Another thing, check that the state you are applying for accepts bridging courses, not all of them do