You will need to speak with an advisor at the school you are planning to attend as they will be able to best advise you regarding their policies about IB credit. At some schools you will receive a certain number of credits for each IB class you took like perhaps 3 credits. At other schools they will accept you IB class in place of one the college classes. Each school is different so I would suggest you check with the admissions office before making your final decision on which school to attend.
Best of luck.