I had an extravasation in September 2004 while having a CT angiogram done to monitor two unruptured aneurysm. I am now getting the scan done, and when I went for the blood test screening, BUN and creatinine, the puncture site bled quite a bit, and I was told that this was unusual. Will this tendency toward bleeding make the scan more difficult and possibly end in a similar extravasation? Thank you so much.