<<Disclaimer: Verify this information before applying it to your situation.>> Has anyone had the stress test (for heart) using the Cardiolite IV? This is just like the regular treadmill stress test to detect heart disease but they inject you with Cardiolite, which is a radioactive material. I'm trying to find out if this solution is GF. I e-mailed and got a short and uninformative answer from the cardiolite web site. They said I should find my answer on their web site. No answer as to GF or not. I know this solution does pass through and accumulate in the intestines and this worries me. If anyone has had this procedure or if you know about Cardiolite, I would greatly appreciate your input. It seems sometimes that the only real and honest help I get is from fellow list members. Thanks! I'll summarize as maybe this will help someone else in the future. Connie in N.C.