Computed Tomography Technologist Practice Exam 2025 - Free CT Technologist Practice Questions and Study Guide

Effective dose is primarily measured in Sieverts (Sv) or Rem, which are units of measurement specifically designed to quantify the biological effect of ionizing radiation on human tissue. The effective dose takes into account the type of radiation and the sensitivity of different tissues and organs to that radiation, allowing for a more accurate assessment of risk associated with radiation exposure.

This approach helps in comparing the risk of exposure from different sources of radiation, whether they be medical procedures, environmental sources, or occupational hazards. In clinical settings, particularly in radiology and nuclear medicine, measuring effective dose is critical for ensuring patient safety and maintaining regulatory standards.

Other options do not relate to measuring effective dose: micrograms per milliliter pertains to concentration levels in chemistry, degrees Celsius measures temperature, and kilowatt-hours are used to measure electrical energy consumption. Thus, only the choice involving Sieverts or Rem accurately reflects the measurement of effective dose related to radiation exposure.