Final answer:
The exact dose limit during fluoroscopy is not provided in the references, but typically, the dosage is regulated by professional guidelines and measured in millisieverts (mSv), not roentgen (R).
Step-by-step explanation:
The question pertains to the recommended dose limit during fluoroscopy procedures. In medical practice, the dose of radiation patients are exposed to is minimized to reduce risk while ensuring diagnostic benefits. For fluoroscopy, professional guidelines specify dose limits to protect patients. However, the exact figure for the dose limit at the tabletop per minute is not provided in the reference material given. Safety standards vary by country and institution, but typically, the dose rate at the tabletop during fluoroscopy should be limited according to regulatory agencies like the FDA or equivalent local bodies. Moreover, it is crucial to note that doses are measured in mSv (millisieverts) in medical contexts, rather than in R (roentgen).