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Radiation Protection - Chapter 12 Exam
Questions With Correct Answers 100%
Verified.
Alternative procedure to the use of radiographic grid for reducing scattered radiation; -
Answer✔Air gap technique
Give a brief description of how the air gap works: - Answer✔This technique removes scatter
radiation by using an increased OID receptor distance. Low energy X-rays get absorbed by the
air.
The use of an air gap technique requires the selection of technical exposure factors that are
comparable to those used with an ______ ratio grid. - Answer✔8:1
Air gap techniques are not as effective when kVp settings are _____ or above. - Answer✔90
Name (6) unnecessary radiologic procedures; - Answer✔1. CXR on admission to hospital
2. CXR as part of pre-employment
3. CXR as part of routine check-up
4. CXR for TB screening
5. L-Spine as part of pre-employment
6. Whole body CT screenings
The amount of radiation (during xrays) received by a patient may be specified in (3) ways. What
are they? - Answer✔1. Entrance Skin Exposure (ESE)
2. Bone marrow Dose
3. Gonadal dose
Why is entrance skin exposure (ESE) the most frequently used method for determining
radiation received by patients? - Answer✔It is the simplest to determine
1
Radiation Protection - Chapter 12 Exam
Questions With Correct Answers 100%
Verified.
Alternative procedure to the use of radiographic grid for reducing scattered radiation; -
Answer✔Air gap technique
Give a brief description of how the air gap works: - Answer✔This technique removes scatter
radiation by using an increased OID receptor distance. Low energy X-rays get absorbed by the
air.
The use of an air gap technique requires the selection of technical exposure factors that are
comparable to those used with an ______ ratio grid. - Answer✔8:1
Air gap techniques are not as effective when kVp settings are _____ or above. - Answer✔90
Name (6) unnecessary radiologic procedures; - Answer✔1. CXR on admission to hospital
2. CXR as part of pre-employment
3. CXR as part of routine check-up
4. CXR for TB screening
5. L-Spine as part of pre-employment
6. Whole body CT screenings
The amount of radiation (during xrays) received by a patient may be specified in (3) ways. What
are they? - Answer✔1. Entrance Skin Exposure (ESE)
2. Bone marrow Dose
3. Gonadal dose
Why is entrance skin exposure (ESE) the most frequently used method for determining
radiation received by patients? - Answer✔It is the simplest to determine
1
