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Test your basic knowledge |
Radiology
Start Test
Study First
Subjects
:
health-sciences
,
radiology
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. In which processing solution do unionized (green) AgBr crystals get removed from the film
2
paresis
fixer
dosimeter
2. Amount of radiation a person can recieve in a calendar year
clinical signs
Maximum Permissible Dose
true
cassette
3. Sheets of luminescent phosphor crystals bound together and mounted on a cardboard or plastic base
false
white
genetic and somatic
intensifying screens
4. NYSVMS Facility Accreditation Standards
narrow latitude film
focal spot
primary
NYS Public Health Law #225
5. Film with: high detail - minimal graininess - increased exposure
x-rays
screen film
slow film
osteomyelitis
6. What is the term for the spotty appearance on the film due to the large crystals in the screens
quantum mottle
3cc/#
speed
Maximum Permissible Dose
7. These cells are the most sensitive to radiation
rapidly dividing
grid cutoff
white and black are reversed
stops peristalsis
8. Hairloss or baldness
stops peristalsis
effective focal spot
mAs
alopecia
9. Legally - a non-pregnant woman is required to hold a HBC dog for radiographs in NYS
true
false
14 x 17
decrease scatter radiation
10. What type of films need a lot more x-ray exposure and more time to expose them
10
highest mA and smallest time fraction
fluoroscopy
non-screen
11. What type of film has no screens or film cassettes
decrease scatter radiation
non-screen
FFD
clinical signs
12. MAs for extremities
santes' rule
5
focused and unfocused or parallel
cathode filament
13. This pertains to the size of the electron cloud and thus directly to the number of x-ray produced
mAs
milliamperage
medium or par
rapidly dividing
14. Is on the anode and is angled at approximately 20 degrees from vertical
whiter
focal spot
more light
mAs
15. When doing a lateral radiograph of the thorax/chest - the x-ray beam should be centered over what specific anatomical landmark
somatic damage
stops peristalsis
aluminum
caudal border of scapula
16. Crystals + x-rays = ?
focal spot
visible light
5
light source
17. Most commonly used film - compromise between graininess and speed (detail)
cervical
true
medium film
phosphor layer dyes
18. A device that moves the grid back and forth under the table. it helps to prevent grid lines from showing
14 x 17
potter-bucky diagram
latent image
decrease scatter radiation
19. X-ray machines come with a set one - we cannot adjust it
potter-bucky diagram
focal spot
FFD
phosphor layer
20. The smaller the focal spot
anode
santes' rule
false
the sharper the radiograph
21. Must change if the FFD changes
stationary anode
non-screen
true
mAs
22. Is determined by the ratio of the height of the lead strips to the distance between them
grid efficiency
intussusception
electrons
false
23. What specific part of the eye is cloudy with a cataract
dosimeter
highest mA and smallest time fraction
black
lens
24. The tendency of a luminescent compound to continue to give off light after x-radiation has stopped
4 ft
afterglow
wide latitude film
aluminum
25. If there's far or muscle in the way of an x-ray - those parts would be
2
caudal border of scapula
grey
sensitive cells
26. If the thorax is greater than or equal to....you should use a grid
NYS Public Health Law #225
iodine
grid cutoff
15 cm
27. These screens have increased definition/detail - need to have increased radiation exposure
slow
screens (phosphor layer)
arthritis
spondylosis
28. Lead equivalent for apron
screens (phosphor layer)
0.25mm
40
thoracic(caudal) and lumbar
29. Is the electrical current that heats the filament
milliamperage
collimator
santes' rule
2
30. Compound of silver and bromine - chlorine - or iodine - all of which are in the halogen group of elements
double mAs
quantum mottle
false
silver halide
31. What is the name for the cartilage flap in the shoulder joint that has broken free and is floating around in the joint fluid
true
joint mouse
anode
intensifying screens
32. If you use an mA of 300 - What time fraction must i use to get an mAs of 10?
1/30
kVp
intensifying screens
wide latitude film
33. An abdominal radiograph should be taken at the peak of expiration
true
false
non-screen film
false
34. Dislocations or separations
secondary
luxations
decrease scatter radiation
contrast
35. When the density difference is great - there is
high contrast
lines per centimeter
fogging
short scale of contrast
36. These screens are the most common type - they give good resolution with relatively low exposure
medium or par
primary
iodine
secondary
37. Is the density difference between 2 adjacent areas on a radiograph
inversely proportional
contrast
spondylosis
anode
38. Calcium 'bridges' between adjacent vertebrae
spondylosis
dosimeter
white and black are reversed
focused and unfocused or parallel
39. Loss of movement in legs (front and/or back)
Maximum Permissible Dose
afterglow
x-rays
paralysis
40. When processing film - the black areas are made of
density
anode
metallic silver
movement
41. Is only 1/3 the size of the actual focal spot
heel effect
cathode
reflective layer
effective focal spot
42. Outer layer of disk ( dries out and cracks and causes disk to herniate)
phosphor layer
short scale of contrast
annulus fibrosis
10
43. Extra pain is also called
black
hyperesthesia
NYS Public Health Law #225
grid cutoff
44. This gives you the desired mAs - and it gives less time for your patient to move
highest mA and smallest time fraction
kVp
mAs
grid cutoff
45. Radiographic signs dont always agree with what
false
non-screen
fogging
clinical signs
46. Safe Operating Procedures
10 cm
SOP
lens
intensifying screens
47. Rotating anode
decrease scatter radiation
mAs
x-rays
2.5
48. The effective focal spot is approximately 1/3 the size of the actual focal spot
true
back scatter
visible light
thoracic(caudal) and lumbar
49. Is the source of electrons
mAs
white and black are reversed
cathode
unexposed AgBr
50. If the x-ray tube is not 36-40 inches from the grid - this is called the
screens (phosphor layer)
decrease scatter radiation
grid cutoff
mAs
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