They then guide it to
the left side and squirt a dye into
the artery which is picked up by a scanner above
the chest, giving images of your arteries. They then do the same on the right side. This is a test to see if you have any blockages in your arteries and the results are used to determine if you require no intervention, just medication, stents or bypass surgery. You will spend a couple of hours relaxing after the procedure before going home.