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wk 3 rad201
| Question | Answer |
|---|---|
| Typically, people are more willing to accept a risk if they perceive that the potential benefit to be obtained is | greater than the risk involved. |
| Radiology departments or individual radiologic technologists can “pledge” to image gently. The pledge includes which of the following? | All of the options. |
| X-rays are a form of which of the following kinds of radiation? | ionizing |
| What unit is used to measure radiation exposure in the metric International System of Units? | Coulomb per kilogram |
| If a patient asks a radiographer a question about how much radiation he or she will receive from a specific x-ray procedure, the radiographer can | respond by using an estimation based on the comparison of radiation received from the x-ray to natural background radiation received. |
| In a hospital setting, which of the following professionals is expressly charged by the hospital administration with being directly responsible for the execution, enforcement, and maintenance of the ALARA program? | Radiation Safety Officer |
| Which of the following is a form of radiation that is capable of creating electrically charged particles by removing orbital electrons from the atom of normal matter through which it passes? | Ionizing radiation |
| Which of the following provides the basis for determining whether an imaging procedure or practice is justified? | Diagnostic efficacy |
| Why should the selection of technical exposure factors for all medical imaging procedures always follow ALARA? | Because radiation-induced cancer does not appear to have a fixed threshold, that is, a dose level below which a person would have no chance of developing this disease. |
| The millisievert (mSv) is equal to | 1/1000 of a sievert. |
| Annihilation radiation is used in which of the following modalities? | Positron emission tomography |
| Although coherent scattering is most likely to occur ____________, some of this unmodified scattering occurs throughout the diagnostic range and can result in small amounts of radiographic fog. | at less than 10 keV |
| If two anatomic structures have the same density and atomic number but one is twice as thick as the other, the thicker structure will absorb | twice as many x-ray photons. |
| Which of the following particles is considered to be a form of antimatter? | Positron |
| X-rays are carriers of | human-made electromagnetic energy. |
Created by:
lindseylaporte