Where are the controls for exposure factors (mA, kVp, and mAs) located?

• A. Located inside a lead-lined area with a lead-treated observation window for viewing the patient; the controls include mA, kVp, and mAS.
• B. The Bucky tray is attached to it.
• C. It is used to shield the patient.
• D. It stores patient records.

Answer: (A)

Controls for exposure factors are located at the radiography console in the control booth behind a leaded barrier with a viewing window. This arrangement lets the technologist adjust mA, kVp, and mAs while staying protected from scatter radiation and watching the patient during the exposure. The other options describe parts or functions of the imaging system that aren’t where the exposure settings are changed: the Bucky tray is where the image receptor sits, shielding devices protect the patient but aren’t control panels, and storing patient records isn’t related to exposure control.