Gastric Emptying Dose Chart
| Examination | Radiopharmaceutical | Target dose | Other |
|---|---|---|---|
| Dual-phase gastric emptying | Solid (99mTc-sulfur colloid) | 7.4 MBq (0.200 mCi) | Liquid eggs |
| Liquid (67Ga-citrate) | 3.0 MBq (0.080 mCi) | Water or apple juice | |
| Solid gastric emptying | 99mTc-sulfur colloid | 7.4 MBq (0.200 mCi) | Liquid eggs or Ensure Plus |
| Liquid gastric emptying | 99mTc-sulfur colloid | 7.4 MBq (0.200 mCi) | Patient formula or water |
| Liquid gastric emptying gastroesophageal reflux | 99mTc-sulfur colloid | 9.3 MBq (0.250 mCi) | <2 y |
| 11.1 MBq (0.300 mCi) | 2–4 y | ||
| 14.8 MBq (0.400 mCi) | ≥5 y |
Radiopharmaceutical dose chart taken from Cincinnati Children’s Hospital Medical Center’s Department of Nuclear Medicine radiopharmaceutical target dose schedule. 99mTc-macroaggregated albumin can be substituted for 99mTc-sulfur colloid if 99mTc-sulfur colloid is not available. 99mTc-DTPA can be used for clear-liquid gastric emptying studies using water.