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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. Film with silver crystals that is more sensitive to fluorescent light emitted from intensifying screens than to ionizing radiation
0.5mm
screen film
fluoroscopy
inverse square law
2. What specific part of the eye is cloudy with a cataract
alopecia
nucleus pulposis
clinical signs
lens
3. What is one of the most common area of occurance for spinal problems (15% dobermans)
rotating anode
grid
cervical
sensitive cells
4. Slowly growing dividing cells are the most sensitive to the effects of ionizing radiaton
false
screens (phosphor layer)
NYS Public Health Law #225
anode
5. The type of collimator that we have here
diskospondylitis
adjustable lead shutters
silver halide
NYS Public Health Law #225
6. Radiograph of a dogs skeleton has a long scale of contrast
false
heel effect
non-screen
0.5mm
7. MAs for abdomen (standard mAs) x=?
supercoat
0.5mm
5
inversely proportional
8. If the kVp is too high
abnormalities
stationary and rotating
increase scatter
screen film
9. Must increase.....to compensate for x-ray absorption by the grid. (we triple our mAs)
grid cutoff
kVp or mAs
AgBr
fast
10. Collimator
mAs
decrease scatter radiation
whiter
secondary
11. What is the term for a negative contrast cystogram where we inject air
pneumocystogram
grid efficiency
density
rotating anode
12. The shorter the wavelength of the x-ray - the more powerful the x-ray is
spondylosis
paresis
40
true
13. Increase developing time and temp of developing fluid
true
increase density
somatic damage
genetic and somatic
14. Extra pain is also called
mAs
hyperesthesia
kVp
medium film
15. What type of cystogram uses air and hypaque
indirect relationship
film cassette
double contrast
hypaque
16. Why do we not give atropine with a contrast radiograph
increase density
dosimeter
stops peristalsis
lead cone and adjustable lead shutters
17. White against black - like the x-ray of a plain skeleton
short scale of contrast
true
grid cutoff
2.5
18. What are the 2 types of anodes
narrow latitude film
abnormalities
non-screen
stationary and rotating
19. Rotating anode
6 ft
non-screen
decrease scatter radiation
true
20. The layer of the film where the action occurs
screens (phosphor layer)
fluoroscopy
non-screen
AgBr
21. If the x-ray tube is not 36-40 inches from the grid - this is called the
narrow latitude film
grid cutoff
cathode filament
film cassette
22. A lightproof encasement designed to hold x-ray film and intensifying screens in close contact
back scatter
cassette
dosimeter
latent image
23. A...is a series of lead strips on edge which only allow the primary x-rays - which are traveling in straight lines - reach the film
white
lead cone and adjustable lead shutters
grid
false
24. Lead equivalent for thyroid sheild
wide latitude film
focused and unfocused or parallel
0.5mm
focal spot
25. Can cause damage to living cells through the process of excitation or ionization of electrons in the orbits around atoms
decrease scatter radiation
grid cutoff
true
x-rays
26. The back of the cassette is made of lead to decrease....
collimator
15 cm
focal spot
back scatter
27. If the thorax is greater than or equal to....you should use a grid
cathode and anode
first trimester
black
15 cm
28. Give a 25% barium solution for upper GI series - and give At what dose?
diskospondylitis
mAs
3cc/#
kVp
29. What is one of the most common areas of occurance for spinal problems ( 85% dachshunds)
thoracic(caudal) and lumbar
grid efficiency
false
fixer
30. Film that is more sensitive to ionizing radiation than to fluorescent light
Maximum Permissible Dose
non-screen film
NYS Public Health Law #225
2.5
31. Sheets of luminescent phorphor crystals on a cardboard or plastic base
FFD
kVp or mAs
cathode
intensifying screens
32. If perforation is suspected - what compound do we use when radiographing
caudal border of scapula
arthritis
x-rays
iodine
33. Cassettes can be made of.....Which is the type here - or they can be made of magnesium - vinyl - etc
speed
14 x 17
aluminum
large crystals - small crystals
34. The efficiency of this reflects light made by phosphors back towards the film
genetic damage
radiographic detail
reflective layer
15
35. Increase mAs and kVp in order to...
cathode and anode
increase density
luxations
speed
36. The exact area of the anode that the electrons hit
somatic damage
focal spot
15% rule for kVp
latent image
37. These crystals will turn white/clear when processing film
unexposed AgBr
nucleus pulposis
heel effect
2.5
38. Infection of a disk - or bone near it
diskospondylitis
mAs
inflammation an granuloma
peak kilovoltage
39. Increased thickness of this leads to increased x-ray absorption and increased visible light emission from the crystals
cathode
3cc/#
phosphor layer
non-screen film
40. Negative contrast agents appear what color on a radiograph
3cc/#
mAs
wide latitude film
black
41. The picture formed after the film has been exposed to x-rays and then processed into a visible image.
focused and unfocused or parallel
radiograph
true
true
42. These screens have increased definition/detail - need to have increased radiation exposure
3cc/#
caudal border of scapula
wobblers syndrome
slow
43. If you use an mA of 300 - What time fraction must i use to get an mAs of 10?
true
short scale of contrast
effective focal spot
1/30
44. What type of film has no screens or film cassettes
indirect relationship
non-screen
double mAs
14 x 17
45. If there's metal in the way of an x-ray - than no x-rays will get through and that part would be
2.5
white
kVp
heel effect
46. What spinal problem do doberman's get
heel effect
kVp
non-screen
wobblers syndrome
47. AgBr + x-rays =
screen film
non-screen film
supercoat
pneumocystogram
48. Must be radiolucent
reflective layer
long scale of contrast
2
film cassette
49. What must have little or no 'afterglow'
whiter
decrease scatter radiation
screens (phosphor layer)
non-screen film
50. If barium leaks into the abdomen or lungs - it can cause what
grid cutoff
inflammation an granuloma
medium film
phosphor type