Certified Healthcare Safety Professional (CHSP) Practice Exam

Which of the following is NOT one of the radiation control methods?

1. Time

2. Distance

3. Temperature

4. Shielding

The correct answer is: Temperature

The correct choice identifies "Temperature" as not one of the radiation control methods, while the other options – time, distance, and shielding – are established principles in radiation safety. When it comes to managing exposure to radiation, the concept of time refers to minimizing the duration of exposure. The less time a person spends near a radiation source, the lower the dose received. Distance involves maximizing space between an individual and the radiation source. Increasing the distance significantly reduces exposure levels due to the inverse-square law, which states that the intensity of radiation from a point source decreases proportionally to the square of the distance from that source. Shielding is a critical method involving materials that absorb or deflect radiation, thus providing a barrier between the radiation source and individuals. Common materials used for shielding include lead, concrete, and other materials specifically designed to reduce radiation exposure. In comparison, temperature does not play a role in controlling radiation exposure. It is more relevant in other contexts within healthcare, but it does not directly influence the safety measures concerning radiation control. Thus, it correctly falls outside of traditional radiation control methods.