Answer
Caffeine blocks adenosine receptors and may weaken the intended response. Follow the specific preparation instructions from the hospital.
Sources for this answer
- Adenosine 3mg/ml Solution for Injection (Focus) — Current selected SmPCemc · Summary of Product Characteristics
- Adenosine 30mg/10ml Solution for Infusion — Current selected SmPCemc · Summary of Product Characteristics
- NHS