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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. Types of cell damage
decrease scatter radiation
screens (phosphor layer)
effective focal spot
genetic and somatic
2. What is the term for an unknown cause
cathode
rapidly dividing
idiopathic
2
3. Extra vertebrae - scoliosis - fused vertebrae are all examples of
sensitive cells
peak kilovoltage
abnormalities
non-screen
4. Radiograph of a dogs skeleton has a long scale of contrast
heel effect
fogging
false
phosphor layer
5. To double the density
osteomyelitis
long scale of contrast
4 ft
double mAs
6. A clear protective layer on radiographic film
calcium tungstate
grid cutoff
electrons
supercoat
7. Extra pain is also called
high contrast
hyperesthesia
non-screen
genetic damage
8. Is influenced by quantity of x-rays(mAs) - quality of x-rays (kVp) - type and thickness of tissue being x-rayed
true
density
black
increase density
9. Cassettes can be made of.....Which is the type here - or they can be made of magnesium - vinyl - etc
aluminum
kVp
direct relationship
cathode and anode
10. If the thorax is greater than or equal to....you should use a grid
double contrast
phosphor layer
no contrast
15 cm
11. This is used to take 'real-time' radiographs - used a lot in horses
non-screen film
non-screen film
fluoroscopy
fogging
12. Safe Operating Procedures
SOP
14 x 17
non-screen
visible light
13. Gelatinous center of disk - pinches spinal cord to cause herniated disk
silver halide
3cc/#
false
nucleus pulposis
14. Distance from the grid to the x-ray tube (36-40 inches)
arthritis
grid focus
more x-rays produced
0.25mm
15. Grid helps reduce the amount of......
true
scatter radiation
primary
15% rule for kVp
16. When processing film - the black areas are made of
cathode
short scale of contrast
metallic silver
cathode
17. This stage of pregnancy is the most dangerous for the fetus
SOP
first trimester
kVp or mAs
lens
18. Ideally is very small
true
electrons
focal spot
phosphor layer dyes
19. This gives you the desired mAs - and it gives less time for your patient to move
alopecia
mAs
15
highest mA and smallest time fraction
20. What type of films need a lot more x-ray exposure and more time to expose them
movement
non-screen
10 cm
x-rays
21. A layer of intensifying screen that reflects the light from the phosphor layer toward the film
reflective layer
genetic damage
santes' rule
osteomyelitis
22. 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
grid
milliamperage
1/30
2
23. Body cells affected - damage seen during lifetime of creature - can be immediate or cummulative
15% rule for kVp
speed
the higher the mA
somatic damage
24. Affects both density and contrast
intensifying screens
true
kVp
wobblers syndrome
25. Tilting of the tube or grid is one reason for
paresis
false
grid cutoff
quantum mottle
26. If the x-ray tube is not 36-40 inches from the grid - this is called the
radiographic detail
x-rays
grid cutoff
pneumocystogram
27. What is the difference between fluoroscopy and a regular radiograph
white and black are reversed
sensitive cells
fogging
spondylosis
28. Bone - lymphatic cells - epitheilial - and hemopoietic cells are also what kind of cell?
first trimester
scatter radiation
sensitive cells
whiter
29. Types of grids
NYS Public Health Law #225
screens (phosphor layer)
focused and unfocused or parallel
grid cutoff
30. Refers to the 'blackness' of a radiograph
density
phosphor layer
line focus principle
phosphor type
31. Sheets of luminescent phorphor crystals on a cardboard or plastic base
movement
focal spot
silver halide
intensifying screens
32. This pertains to the size of the electron cloud and thus directly to the number of x-ray produced
mAs
15 cm
x-rays
spondylosis
33. Aluminum filter
decrease scatter radiation
screen film
intussusception
afterglow
34. Calcium tungstate - rare earth elements
milliamperage
phosphor type
collimator
whiter
35. Is the device which restricts (narrows) the beam of x-rays as they leave the x-ray machine
movement
secondary
collimator
large crystals - small crystals
36. Increased crystal size.....
black
4 ft
grey
more light
37. When this is exposed to x-rays - it will absorb photons (quanta) and give off photons of visible light which the film is sensitive to (give off blue light)
wobblers syndrome
AgBr
calcium tungstate
intussusception
38. What specific part of the eye is cloudy with a cataract
lens
hypaque
joint mouse
black
39. DJD is also called
black
arthritis
non-screen
latent image
40. Does move - has disks that rotate at high speeds - this helps spread out the heat that's produced as the electrons hit the focal spot
idiopathic
increase scatter
scatter radiation
rotating anode
41. Is only 1/3 the size of the actual focal spot
nucleus pulposis
fast film
quantum mottle
effective focal spot
42. The shorter the wavelength of the x-ray - the more powerful the x-ray is
cathode
paresis
movement
true
43. What needs to have high levels of x-ray to light conversion with the correct energy and color for the type of film used
unexposed AgBr
0.25mm
white and black are reversed
screens (phosphor layer)
44. They don't move - they're found in dental units and portable units - cannot withstand the heat produced from large units
mAs
15
stationary anode
primary
45. Infection of a disk - or bone near it
fast
double contrast
diskospondylitis
spondylosis
46. Screens are classified according to
speed
0.5mm
15 cm
paresis
47. An invisible image on the x-ray film Which becomes visible after it has been processed in the manual or automatic processor
kVp
anode
40
latent image
48. For bladder cystography - we use what contrast material instead of barium
speed
focal spot
iodine
hypaque
49. Film that is more sensitive to ionizing radiation than to fluorescent light
non-screen film
mAs
1/30
nucleus pulposis
50. Screen speed is.....to the exposure required to cause it to flouresce
heel effect
inversely proportional
fast
joint mouse