Your degree will be fine. The US requires that you be a generalist, not a specialist. The UK as well as Australia now trains nurses as specialists and they have to complete the required hours before they can be licensed.
Your credentials will need to be evaluated by CGFNS depending on where you wish to work and get your license from. As long as you are getting a your bachelor's degree in nursing, you will have no problem. You will be responsible for completing a full set of the English exams if you need to have a Visa Screen Certificate. Currently, if you are married or engaged to an American when you get petitioned, you do not need to do that.
All CGFNS will tell you if you contact them is that they review each candidate on a case by case basis. I do not know of one nurse that has been turned down with a Bachelor's degree due to transcripts, it would have to be something of a criminal problem.
Don't worry and just enjoy your schooling.............