Violation
When taking radiographs on a 10 year old child, which of the following should be used to decrease radiation exposure? 1. A lead apron. 2. A decrease of the kilovoltage to 50kVp. 3. Use of high speed film. 4. Application of a radiation protection badge.
(2) and (4)
(1) and (3)
(1) (2) (3)
All of the above
(4) only