Final answer:
Radiopharmaceutical prescriptions generally cannot have refills due to the short half-lives of these substances, such as Tc-99m, and the need for specific timing in their application for diagnostics or therapy. The unique nature of radiopharmaceuticals disallows traditional prescription refill practices, making the statement predominantly false.
Step-by-step explanation:
The question regarding whether radiopharmaceutical prescriptions can have refills is concerned with practical aspects of nuclear medicine. Given the peculiarities of radiopharmaceuticals, particularly their short half-lives—as exemplified by the widely used Tc-99m with a half-life of 6.01 hours—it becomes clear that these substances cannot typically be stored or easily transported. Instead, they are generated on-site, as needed. For instance, Mo-99 decays to produce Tc-99, and this is done in hospital settings due to Mo-99's relatively short half-life, which would make it impractical to ship once Tc-99 has been extracted.
Furthermore because radiopharmaceuticals are frequently used in diagnoses and treatments that require specific timing due to their rapid processing within the body or their concentration in targeted tissues, the nature of their application often means that traditional prescription refills are not applicable. In the context of diagnostics such as PET scans requiring immediate imaging after ingestion or tagging of a radiopharmaceutical, or therapeutic uses, like targeting cancer cells with tagged antibodies, the notion of refills is not practical. Each application is typically a single, carefully timed dose. Considering these factors, the content loaded statement "T/F: Radiopharmaceutical Rx can have refills" leans towards false as the unique characteristics of radiopharmaceuticals do not align with the traditional refill system of prescriptions.