What information must be on a label for a radiopharmaceutical's outer container?

The correct response highlights the importance of specific warnings and identification for radiopharmaceuticals due to their unique handling and safety requirements. The label for a radiopharmaceutical's outer container must include a caution indicating that it contains radioactive material, which is crucial for both regulatory compliance and safety purposes. This warning alerts individuals handling the product to take appropriate precautions to minimize exposure to radiation.

Including the lot number on the label is also essential for traceability and quality control, allowing for the tracking of the product back to its manufacturing batch in case of recalls or safety issues.

This level of detail ensures that anyone interacting with the radiopharmaceutical is fully aware of its potential hazards and the necessary safety measures that must be taken, a requirement underscored by regulatory bodies to protect both the public and healthcare personnel. Labels that merely mention storage requirements, or only include details specific to controlled substances or the amount of active ingredient, do not encompass the critical information necessary for safe handling of radioactive materials.