I had a mri yesterday i was fasting because it was without dye, they said they couldn't do renal without dye dr said ok my gfr is32 and creatine 1.5 ?

The American: College of Radiology considers a GFR of 30-40 "at risk" (http://www.acr.org/quality-safety/resources/contrast-manual). Consideration should be given to alternative tests. If risk/benefit analysis warrants MRI, certain contrast agents should be avoided, and the lowest possible dose of contrast should be utilized. Talk to your doc about it.