Test File 2

Question 1

11. How to increase magnification

Answer 1

a. Decrease receptor to object distance

Question 2

12. What does increasing the source to receptor distance do?

Answer 2

a. Decrease magnification and increase sharpness

Question 3

13. Recommended diameter

Answer 3

a. 2.75 inches

Question 4

14. Natural Background radiation (ionizing) example

Answer 4

a. Radon

Question 5

15. Background radiation example

Answer 5

a. cosmic

Question 6

16. Pregnant individual maximum exposure

Answer 6

a. 500 mRem

Question 7

17. Occupational MPD

Answer 7

a. 50 mSv

Question 8

18. Non-occupational MPD

Answer 8

a. 5 mSv

Question 9

19. The prodromal period effects are

Answer 9

a. Non-lethal

Question 10

20. Which is not a part of acute radiation syndrome

Answer 10

a. Renal

Question 11

21. If the energy/dose thing is higher than an x ray, the absorbed dose is ____ the equivalent dose

Answer 11

a. Less than

Question 12

23. For radiation that has higher quality factor, the equivalent dose will be ____ to the absorbed dose

Answer 12

a. Higher than

Question 13

24. Which uses the tissue sensitivity factor?

Answer 13

a. Effective dose

Question 14

25. What uses the radiation weighting factor?

Answer 14

a. Equivalent dose

Question 15

26. For foreshortening: beam is _____ to the tooth and the receptor and tooth are _____

Answer 15

a. Answer was: not perpendicular (to the tooth), not parallel
i. Tooth and receptor are not parallel
ii. Beam is perpendicular to receptor (not perpendicular to the tooth)

Question 16

27. If the tooth is not parallel to the receptor, and the beam is perpendicular to the tooth, the tooth will appear

Answer 16

a. Longer than the actual size (elongation)

Question 17

28. The latent period in radiation biology is

Answer 17

a. The time between radiation exposure and onset of biological effects

Question 18

29. Effect of radiation to the oral cavity in regards to erupted teeth are

Answer 18

a. Indirect

Question 19

30. What is an example of an indirect effect of radiographs taken in the oral cavity

Answer 19

a. Radiation caries

Question 20

31. Error picture (left hand corner was all blurry and white)

Answer 20

a. Bending

Question 21

32. According to 2012 FDA/ADA recommendations, what radiographs would you take for a new patient?

Answer 21

a. Individualized radiographs based on clinical assessment

Question 22

33. According to 2012 FDA/ADA recommendations, what radiographs would you take for an adult recall patient?

Answer 22

a. Posterior bitewings at 24-36

Question 23

34. Bisecting angle technique is perpendicular to what

Answer 23

a. Neither the tooth or receptor

Question 24

35. Overlapping of contacts occurs due error in what

Answer 24

a. Horizontal angulation

Question 25

36. What would decrease the penumbra of the image?

Answer 25

a. Increasing source to object ratio

Question 26

37. Increasing the source to object distance will

Answer 26

a. Increase sharpness, decrease magnification

Question 27

38. This picture is due to what technical error (whole film was off to the corner, mostly white shown)

Answer 27

a. Not biting on bite block (we thought it was XCP but its not and this was added on discussion board)

Question 28

39. According to the slob rule, when you move the tube head mesially, and the object also moves mesially, where is it located?

Answer 28

a. Lingually

Question 29

40. What is the most lethal part of hematopoietic syndrome?

Answer 29

a. Sepsis

Question 30

41. Which part of acute radiation syndrome has the most severe biological effects?

Answer 30

a. CNS/Cardiovascular Syndrome

Question 31

42. What is true about stochastic effects?

Answer 31

a. Probability of occurrence is proportional to dose

Question 32

43. Image of cone cut, asked which collimator and what caused the cone cut

Answer 32

a. Rectangular; Improper horizontal angulation

Question 33

44. Miss nice lady A got cancer from radiation, but her kids were not affected?

Answer 33

a. Somatic issue

Question 34

45. Which of the following causes increased effects of radiation biology?

Answer 34

a. Increase oxygen and younger age

Question 35

46. On MiCAPS, the mirror option will help fix

Answer 35

a. Plate exposed backwards

Question 36

47. Protocol for taking radiographs on a pregnant patient

Answer 36

a. Indicated for acute, painful dental problems diagnosis only