We need to be more informed so that we can weigh the potential costs, risks and complications of heart test in women to determine what is best. Some of the risks include radiation exposure, dye reactions and vascular injury. Let's put that into context. One nuclear stress test, one of the most common heart tests, is equivalent to radiation exposure of 39 mammograms and up to 1,000 chest X-rays. In case you are wondering, this is a big deal.