-  Adjust protocol for CAD diagnosis (stress-rest/redistribution) or viability assessment (rest-redistribution). Use of 5-10 mg isosorbide mononitrate sublingually is suggested before resting phase or reinjection, to increase tracer uptake.

-  Fasting for 3-4 h when stress test is performed.

- Withdraw cardiovascular medications if indicated by attending physician. In particular betablockers in case of exercise procedure.Allow 5 plasma half lives to pass on each of them.

-  When employing dipyridamole or adenosine (preferred if LBBB present) withdraw any food containing xanthines (tea, coffee, chocolate, beverages) for 12-24 h.