Clinics for bloodwork cheaper???

Hey everyone, I have to go see Dr. Baker at the end of the month for my 6 month checkup, and I have to do some bloodwork. I don't have insurance (AR rehab paid for my surgery but they won't cover the bloodwork) and I was wondering if anyone knows of a clinic where I can get my bloodwork done cheaper? The clinic in the town where I live (near Searcy) is saying it will be $400-$500. I really can't afford this, but Dr. Baker says I have to do it. I don't want to put it on my credit card, but I will if I have to, but I would appreciate it if anyone could direct me to a clinic that will do it cheaper. Thanks! Tammy 373/265/170?? -108 lbs.