Cardiologist Dr. Bernstein recently told me, “Pharmacologic stress testing doesn’t cause ischemia, and can be done to patients right after an MI.”
The American Academy of Nuclear Cardiology says, “Adenosine generally does not cause myocardial ischemia. However, in a small percentage of patients with severe coronary artery disease (CAD), true ischemia may be induced because of a coronary steal phenomenon. Since
the myocardial tracer uptake is proportional to the regional myocardial blood flow, a heterogeneous distribution of radiotracer occurs in the myocardium.”
Reference
https://www.asnc.org/files/Practice%20Resources/Practice%20Points/PPStressTests081511[1].pdf