1st dui I would like to know will be rearrested at my arraignment if blew a .189 or will get credt for the one day was in jail courtdate is in sept

I think you need to talk to a lawyer, before you go to court on this.  I'm not a Louisiana lawyer and I don't know the limit in your state, but most places it's no higher than .08, and you blew more than twice that.  The question here might be not whether you are going to jail, but for how long, and that's where an attorney can make a real difference for you.  One place to find defense counsel is our website, http://attorneypages.com

You should get credit for the day in jail, although the law and procedure on that can be different from one state to another.