Answer
Follow your appointment letter and arrive well hydrated unless your clinical team has restricted your fluid intake.
Sources for this answer
- Stabilised Ceretec 500 micrograms kit for radiopharmaceutical preparation — Current selected SmPCemc · Summary of Product Characteristics
- NHSNHS · NHS medicine guidance
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.