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DASLE RADIOLOGY EXAM QUESTIONS AND ANSWERS
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DASLE RADIOLOGY EXAM QUESTIONS AND ANSWERS 1. Define ionization:Occurs when x-rays interact with matter. - Answer-The primary way x- rays damage biological tissue. 2. Describe the way in which x-rays damage biological tissue. - Answer-Ionization 3. List the ways to reduce radiation exposure to...

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  • October 16, 2024
  • 6
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • dasle radiology exam questions and answers

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EMILLECT 2024/2025 ACADEMIC YEAR ©2024 EMILLECT. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER, 2024




DASLE RADIOLOGY EXAM
QUESTIONS AND ANSWERS

1. Define ionization:Occurs when x-rays interact with matter. - Answer✔✔-The primary way x-

rays damage biological tissue.


2. Describe the way in which x-rays damage biological tissue. - Answer✔✔-Ionization


3. List the ways to reduce radiation exposure to the patient while taking a FMX. - Answer✔✔--

Use high speed film-Use retention device-Decrease VA by using the paralleling technique4. List

the ways to reduce radiation exposure to the operator while taking a FMX. -Do not hold the film

for the patient-Stand behind the head or 6 feet away from the exposure-Monitor with a badge


5. What is the MPDR? - Answer✔✔-5 R a year or 5 rem a year


6. What is the purpose of the lead foil? - Answer✔✔-To prevent back scattering secondary

radiation from fogging the film


7. Which cells are most sensitive to radiation? - Answer✔✔-Why?Gonadal/genetic and

reproductive. They reproduce quickly.


8. How should films be stored? - Answer✔✔-In a cool, dry place.


9. Explain why the body cannot be exposed to a large amount of radiation in a short period of

time. - Answer✔✔-The body is not capable for repairing itself that fast.

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, EMILLECT 2024/2025 ACADEMIC YEAR ©2024 EMILLECT. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER, 2024


10. List the three types of radiation.-primary - secondary or scatter - - Answer✔✔-stray


11. Which type of radiation is the most hazardous to the operator? - Answer✔✔-secondary


12. If you use too much VA, how will the radiographs appear? - Answer✔✔-Foreshortened


13. Which technique causes the zygomatic to be superimposed on the roots of the maxillary

molar? Why? - Answer✔✔-Bisecting. Because that technique uses a greater VA.


14. Define overlapping. - Answer✔✔-Superimposition of proximal surfaces on adjacent teeth


15. What causes foreshortening? - Answer✔✔-Too much VA


16. What causes elongation? - Answer✔✔-Too little VA


17. If the film is curved or overcontoured, how will the radiograph appear? - Answer✔✔-Image

distortion


18. What causes white chalky spots on the film? - Answer✔✔-Insufficient rinsing


19. What causes conecutting? - Answer✔✔-Incorrect central ray entry - not at center of the film

packet


20. If a film is overexposed, how will it appear? - Answer✔✔-Too dark


21. If a film was developed but never exposed, how will it appear? - Answer✔✔-Light bluish

green and clear


22. How would weak processing solutions cause a film to appear? - Answer✔✔-Too light



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