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Lesson 2 Radiation Safety Exam Questions and Answers
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  • Radiation Safety

Which of the following is not related to limiting patient exposure to x-radiation? - Answer-Use of a film badge Radiation monitor badges are used to monitor exposure of dental workers, not patients. Which of the following reduces patient exposure to x-radiation? - Answer-Longer PID A longe...

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  • October 10, 2024
  • 2
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • lesson 2 radiation safety exam questions and answe
  • which of the following is not related to limiting

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  • Radiation safety
  • Radiation safety

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Lesson 2 Radiation Safety Exam
Questions and Answers
Which of the following is not related to limiting patient exposure to x-radiation? -
Answer-Use of a film badge

Radiation monitor badges are used to monitor exposure of dental workers, not patients.

Which of the following reduces patient exposure to x-radiation? - Answer-Longer PID

A longer PID means greater distance from the source to the patient, thereby reducing
radiation exposure.

Rapid turnover of cells in a tissue is usually an indication that the tissue is sensitive to
damage by ionizing radiation. - Answer-True

Oral mucosa, skin, and reproductive cells are examples of short-lived cells that are very
sensitive to radiation damage.

Which of the following techniques can be used to reduce operator exposure to x-rays? -
Answer-Moving six feet from the tube head

By remaining at least six feet from the source of radiation, operators greatly reduce their
exposure. The remaining answers are related to patient exposure, not operator
exposure.

Scatter radiation is produced when the primary beam is weakened and deviated in its
path, thus interacting with patient body tissues. - Answer-True

These weaker x-rays can be absorbed by nearby tissues.

Which of the effects of radiation exposure are passed along to future generations? -
Answer-Genetic effects

Genetic effects are passed along to future generations because the reproductive cells
have been impacted.

What is the purpose of the aluminum filter in the x-ray tube? - Answer-To filter out long
wavelength x-rays

Long wavelength, weaker x-rays tend to scatter and unnecessarily expose adjacent
tissues. The aluminum filter removes them from the beam leaving only the short
wavelength, high energy, penetrating beams to hit the receptor (film/sensor).

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