I went for a ct of the abdomen yesterday. Hade the normal labs BUN and Creatinine, was given a drink named Breeze (2) to drink, 45 minutes later was taken to the ct room, They told me that they could not do the part with the iv dye, due to the BUN being too high. It was 45, and in Jan. it was 55. Should I be concerned enough to see a specialist?