Premedication Protocols Adjusted to Age and Weight
| Medication | 1–12 y, <20 kg | 1–12 y, >20 kg | >12 y | Administration before scan |
|---|---|---|---|---|
| Oral ranitidine oral | 3 mg/kg | 3 mg/kg; maximum, 150 mg | 150 mg | Twice daily, starting 1 d before scan; last dose, morning before scan |
| Intravenous ranitidine | 1 mg/kg | 1 mg/kg; maximum, 50 mg | 50 mg | 15 min before scan |
| Intravenous esomeprazole | 10 mg | 20 mg | 40 mg | 30 min before scan |