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Radiation Health and Safety - Test 1 Practice Questions and Answers

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Radiation Health and Safety - Test 1 Practice Questions and Answers What is a true statement regarding pregnant patients and exposure to radiation? - ANSWER-Lead aprons prevent exposure to the fetus Divergence of the x-ray beam is reduced using: - ANSWER-The paralleling technique The maximum p...

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  • November 4, 2024
  • 9
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
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KaylinHoffman
Copyright © KAYLIN 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH NOVEMBER, 2024




Radiation Health and Safety - Test 1

Practice Questions and Answers


What is a true statement regarding pregnant patients and exposure to radiation? - ANSWER✔✔-Lead

aprons prevent exposure to the fetus


Divergence of the x-ray beam is reduced using: - ANSWER✔✔-The paralleling technique


The maximum permissible dose (MPD) for occupationally exposed workers is: - ANSWER✔✔-0.05 Sv/yr


What represents the optimum desired occupational dose? - ANSWER✔✔-0 rem/yr


What would be an acceptable practice for an operator of dental x-ray equipment? - ANSWER✔✔-

Wearing a film badge only at work


What does a film badge monitor? - ANSWER✔✔-Radiographer's daily occupational radiation exposures


What is an acceptable emission from the tubehead? - ANSWER✔✔-Primary radiation


What is an accurate statement about safe operating procedures? - ANSWER✔✔-All dental staff members

should wear dosimeters


You have a new dental x-ray machine. The length of the PID is changing form 16 to 8 inches. How does

this affect the intensity of the x-ray beam? What adjustment will you need to make to keep the dentistry

of your images consistent? - ANSWER✔✔-The resultant beam will be four times as intense. You will need

to decrease the exposure.


Which type of beam does not produce scatter radiation? - ANSWER✔✔-Both rectangular and round

Copyright ©Stuvia International BV 2010-2024 Page 1/9

, Copyright © KAYLIN 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH NOVEMBER, 2024


When using a stepwedge to test developer strength, a total of _________ films should be taken. -

ANSWER✔✔-20


A reference radiograph is used to compare: - ANSWER✔✔-Densities


A coin test is used to check for: - ANSWER✔✔-Proper safelighting


Extraoral intensifying screens should be checked periodically for: - ANSWER✔✔-Dirt and scratches


When densities differ by more than two steps on a stepwedge, which protocol should be followed? -

ANSWER✔✔-Replace the processing solutions


On average, processing solution should be changed: - ANSWER✔✔-Every 3-4 weeks


Which is required fro film duplication? - ANSWER✔✔-Duplication film


This radiograph is mounted labially. What is the radiopaque restoration on tooth #19 in this image? -

ANSWER✔✔-An amalgam restoration with an overhang on the mesial surface


What process is occurring in this image? - ANSWER✔✔-Physiologic resorption


Which structure appears in this panoramic image? - ANSWER✔✔-Metal framework for two partial

dentures


What landmark is indicated by the arrow? - ANSWER✔✔-Coronoid process


Which exposure error results in the "herringbone effect"? - ANSWER✔✔-Film reversal


How does the median palatine suture appear in a dental image? - ANSWER✔✔-Thin radiolucent vertical

line between teeth #8 and #9




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