Final answer:
The selection of technical exposure factors for medical imaging procedures should always follow ALARA because it minimizes radiation dose to patients and staff.
Step-by-step explanation:
The selection of technical exposure factors for all medical imaging procedures should always follow ALARA because it minimizes radiation dose to patients and staff. ALARA stands for As Low As Reasonably Achievable, which means that radiation doses should be kept as low as possible without compromising the quality of the images. This is important because excessive radiation exposure can increase the risk of cancer and other health problems.
To achieve ALARA, several measures can be taken. These include using shielding to absorb radiation, increasing the distance from the radiation source, and limiting the time of exposure. By implementing these measures, the radiation dose to patients and staff can be reduced, ensuring their safety.