Test File 2 Flashcards
1
Q
- How to increase magnification
A
a. Decrease receptor to object distance
2
Q
- What does increasing the source to receptor distance do?
A
a. Decrease magnification and increase sharpness
3
Q
- Recommended diameter
A
a. 2.75 inches
4
Q
- Natural Background radiation (ionizing) example
A
a. Radon
5
Q
- Background radiation example
A
a. cosmic
6
Q
- Pregnant individual maximum exposure
A
a. 500 mRem
7
Q
- Occupational MPD
A
a. 50 mSv
8
Q
- Non-occupational MPD
A
a. 5 mSv
9
Q
- The prodromal period effects are
A
a. Non-lethal
10
Q
- Which is not a part of acute radiation syndrome
A
a. Renal
11
Q
- If the energy/dose thing is higher than an x ray, the absorbed dose is ____ the equivalent dose
A
a. Less than
12
Q
- For radiation that has higher quality factor, the equivalent dose will be ____ to the absorbed dose
A
a. Higher than
13
Q
- Which uses the tissue sensitivity factor?
A
a. Effective dose
14
Q
- What uses the radiation weighting factor?
A
a. Equivalent dose
15
Q
- For foreshortening: beam is _____ to the tooth and the receptor and tooth are _____
A
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)
16
Q
- If the tooth is not parallel to the receptor, and the beam is perpendicular to the tooth, the tooth will appear
A
a. Longer than the actual size (elongation)
17
Q
- The latent period in radiation biology is
A
a. The time between radiation exposure and onset of biological effects
18
Q
- Effect of radiation to the oral cavity in regards to erupted teeth are
A
a. Indirect
19
Q
- What is an example of an indirect effect of radiographs taken in the oral cavity
A
a. Radiation caries
20
Q
- Error picture (left hand corner was all blurry and white)
A
a. Bending
21
Q
- According to 2012 FDA/ADA recommendations, what radiographs would you take for a new patient?
A
a. Individualized radiographs based on clinical assessment
22
Q
- According to 2012 FDA/ADA recommendations, what radiographs would you take for an adult recall patient?
A
a. Posterior bitewings at 24-36
23
Q
- Bisecting angle technique is perpendicular to what
A
a. Neither the tooth or receptor
24
Q
- Overlapping of contacts occurs due error in what
A
a. Horizontal angulation
25
36. What would decrease the penumbra of the image?
a. Increasing source to object ratio
26
37. Increasing the source to object distance will
a. Increase sharpness, decrease magnification
27
38. This picture is due to what technical error (whole film was off to the corner, mostly white shown)
a. Not biting on bite block (we thought it was XCP but its not and this was added on discussion board)
28
39. According to the slob rule, when you move the tube head mesially, and the object also moves mesially, where is it located?
a. Lingually
29
40. What is the most lethal part of hematopoietic syndrome?
a. Sepsis
30
41. Which part of acute radiation syndrome has the most severe biological effects?
a. CNS/Cardiovascular Syndrome
31
42. What is true about stochastic effects?
a. Probability of occurrence is proportional to dose
32
43. Image of cone cut, asked which collimator and what caused the cone cut
a. Rectangular; Improper horizontal angulation
33
44. Miss nice lady A got cancer from radiation, but her kids were not affected?
a. Somatic issue
34
45. Which of the following causes increased effects of radiation biology?
a. Increase oxygen and younger age
35
46. On MiCAPS, the mirror option will help fix
a. Plate exposed backwards
36
47. Protocol for taking radiographs on a pregnant patient
a. Indicated for acute, painful dental problems diagnosis only
