Final answer:
The usual adult dose for hepatobiliary imaging with Tc99m iminodiacetic acid is 5-8 mCi, utilizing the efficient and manageable radiopharmaceutical properties of technetium-99m.
Step-by-step explanation:
The usual adult dose for hepatobiliary imaging with Tc99m iminodiacetic acid is 5-8 mCi. This information can be derived from the context provided, as it is consistent with the typical activities listed for diagnostic uses of radiopharmaceuticals such as technetium-99m (99mTc). Notably, 99mTc is a widely used radioisotope in medical imaging due to its short half-life of approximately 6 hours, which limits the radiation dose to the patient, and its ability to be easily produced on site. Hepatobiliary imaging uses the properties of 99mTc attached to iminodiacetic acid to visualize the liver, gallbladder, and bile ducts.