DANB Radiation Health and Safety (RHS) Exam 2025 – 400 Free Practice Questions to Pass the Test

The term that specifically refers to the measurement of the amount of radiation energy absorbed by the body is "absorbed dose." This measurement is crucial in radiation health and safety because it quantifies the energy deposited by ionizing radiation in a given mass of tissue. The unit for absorbed dose is the gray (Gy), which reflects how much energy is absorbed per kilogram of tissue.

Effective dose, on the other hand, considers the type of radiation and the sensitivity of different tissues to provide a more comprehensive assessment of potential biological effects. Radiation dose is a general term that can apply to various contexts, including exposure levels and absorbed doses, without specifying the energy absorption in tissues. Exposure dose typically refers to the amount of ionizing radiation that reaches a person, measured in roentgens or coulombs per kilogram, and does not directly indicate how much energy is absorbed by the body itself. Therefore, absorbed dose is the precise term needed to describe the actual uptake of radiation energy by body tissues.