The thallium scan helps determine if areas of the
heart do not receive enough blood. The exercise
thallium scan is especially useful in diagnosing coronary artery disease, the presence of blockages in the coronary arteries (the vessels that supply oxygen-rich blood to the heart muscle).
Yes, it would be appropriate to take a stress test to determine if there are any vessel occlusions that may be blocking a good and adequate blood supply to the heart cells.