How far can the tube be placed in some remote control setups in fluoroscopy?

In some remote control setups in fluoroscopy, the x-ray tube can be positioned over the patient. This capability is essential for providing flexibility and optimizing imaging quality. By placing the tube above the patient, it allows for various angles and projections without the need for the operator to be physically close to the patient, enhancing both safety and comfort during procedures. This arrangement can also help in reducing unnecessary radiation exposure to healthcare workers.

The other options generally refer to positioning that might not provide the necessary advantages for effective fluoroscopic imaging. While placing the tube under the table or next to the operator can have valid applications, these setups can limit the range of imaging angles or create potential hazards. The option suggesting the tube can only be in the control room is limiting, as this would not allow for any imaging of the patient. Overall, positioning the tube over the patient offers the most practicality and effectiveness in remote control fluoroscopic procedures.