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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. Calcium 'bridges' between adjacent vertebrae
10 cm
spondylosis
wide latitude film
rare earth elements
2. Is the most common artifact in radiography
movement
false
true
x-rays
3. What is one of the most common areas of occurance for spinal problems ( 85% dachshunds)
high contrast
2
thoracic(caudal) and lumbar
supercoat
4. Loss of movement in legs (front and/or back)
lead cone and adjustable lead shutters
FFD
radiograph
paralysis
5. Body cells affected - damage seen during lifetime of creature - can be immediate or cummulative
direct relationship
pneumocystogram
somatic damage
milliamperage
6. Is the electrical current that heats the filament
focal film distance
cathode
milliamperage
iodine
7. Increased crystal size.....
more light
0.25mm
white
double contrast
8. The mAs has to do with the power of the x-rays produced
5
NYS Public Health Law #225
false
spondylosis
9. Screen speed is.....to the exposure required to cause it to flouresce
true
metallic silver
grid cutoff
inversely proportional
10. The greater the number of electrons released
the higher the mA
false
narrow latitude film
phosphor layer dyes
11. MAs for bone views (pelvis - skull - spine) 2x =?
radiograph
aluminum
10
phosphor layer
12. Negative contrast agents appear what color on a radiograph
0.5mm
black
inversely proportional
milliamperage
13. Incorrect grid focus is one reason for
focal spot
grid cutoff
iodine
stationary anode
14. Has a filament made of tungsten - due to the high melting point
non-screen
arthritis
cathode
cathode and anode
15. With what kind of typical film do we get 95% exposure due to visible light and 5% is due to the x-rays directly
screen film
fast
alopecia
speed
16. What is the term for the spotty appearance on the film due to the large crystals in the screens
SOP
somatic damage
movement
quantum mottle
17. If there's no object in the way of an x-ray - the picture would be
black
high contrast
higher mA
1/30
18. When processing film - the black areas are made of
fast film
line focus principle
metallic silver
long scale of contrast
19. Collimator
decrease scatter radiation
spondylosis
pneumocystogram
paralysis
20. A device that moves the grid back and forth under the table. it helps to prevent grid lines from showing
osteomyelitis
potter-bucky diagram
anode
NYS Public Health Law #225
21. MAs for chest 1/2x =?
x-rays
silver halide
2.5
fogging
22. Film that is more sensitive to ionizing radiation than to fluorescent light
non-screen film
visible light
secondary
idiopathic
23. Lead equivalent for apron
0.25mm
visible light
speed
pneumocystogram
24. The distance from the x-ray tube to the x-ray machine is the SID (source image distance) - or the FFD (also known as....)
focal film distance
higher mA
lead cone and adjustable lead shutters
screens (phosphor layer)
25. With this procedure - no x-ray film is involved at all
anode
increase density
fluoroscopy
phosphor layer
26. NYSVMS Facility Accreditation Standards
the higher the mA
lens
calcium tungstate
NYS Public Health Law #225
27. When the density difference is great - there is
inversely proportional
direct relationship
high contrast
focal film distance
28. For bladder cystography - we use what contrast material instead of barium
grid efficiency
anode
first trimester
hypaque
29. Radiograph of a dogs skeleton has a long scale of contrast
false
true
true
slow film
30. This gives you the desired mAs - and it gives less time for your patient to move
false
10
highest mA and smallest time fraction
narrow latitude film
31. Between density and mAs
calcium tungstate
thoracic(caudal) and lumbar
silver halide
direct relationship
32. Is to the left - electrons bounce off it at a 20 degree angle
fixer
double mAs
anode
no contrast
33. When more electrons hit the focal spot on the anode
more x-rays produced
non-screen film
reflective layer
mAs
34. MAs for extremities
5
more light
mAs
back scatter
35. This stage of pregnancy is the most dangerous for the fetus
2
inversely proportional
first trimester
intensifying screens
36. If there's bone in the way of an x-ray -. those parts would be
focused and unfocused or parallel
whiter
stationary anode
phosphor layer dyes
37. Faster screens/less detail; slower screens/more detail
large crystals - small crystals
1/30
the sharper the radiograph
high contrast
38. Screens are classified according to
cathode filament
iodine
speed
rare earth elements
39. What must have little or no 'afterglow'
intensifying screens
the sharper the radiograph
screens (phosphor layer)
non-screen
40. This number in santes' rule refers to the distance the x-ray tube is from the x-ray film
more light
anode
40
cathode and anode
41. Infection of a disk - or bone near it
focal spot
cathode and anode
diskospondylitis
false
42. Size film we use here
14 x 17
wobblers syndrome
mAs
joint mouse
43. What type of film has no screens or film cassettes
0.5mm
screens (phosphor layer)
fast
non-screen
44. Redness of the skin
fogging
false
cathode
erythema
45. Sheets of luminescent phosphor crystals bound together and mounted on a cardboard or plastic base
true
intensifying screens
increase scatter
rotating anode
46. This pertains to the size of the electron cloud and thus directly to the number of x-ray produced
lead cone and adjustable lead shutters
peak kilovoltage
mAs
grid cutoff
47. Gelatinous center of disk - pinches spinal cord to cause herniated disk
AgBr
inversely proportional
screen film
nucleus pulposis
48. The smaller the focal spot
grid
the sharper the radiograph
screens (phosphor layer)
lens
49. What type of films need a lot more x-ray exposure and more time to expose them
density
non-screen
false
40
50. Cassettes can be made of.....Which is the type here - or they can be made of magnesium - vinyl - etc
white and black are reversed
iodine
3cc/#
aluminum