Which of the following is not an optimum factor for patient protection during fluoroscopic procedures?

The correct answer highlights that a focus-to-tabletop distance of 10 inches is not an optimum factor for patient protection during fluoroscopic procedures. Optimal focus-to-tabletop distance is crucial in fluoroscopy for ensuring image quality while minimizing patient radiation exposure. Generally, a greater distance is preferable as it reduces the radiation dose to the patient.

In comparison, the other options reflect best practices for radiation safety. The specified kilovolt peak (kVp) range of 85-100 is effective for adequate imaging while limiting patient dose. Similarly, the milliampere (mA) range of 1-3 is considered low and helps in reducing radiation exposure during procedures. The use of a 2.5 mm aluminum filter serves to further protect the patient from low-energy radiation that does not contribute to image quality, allowing for improved safety without compromising diagnostic efficacy. Together, these factors contribute to a safer fluoroscopic environment for patients.