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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. The layer of the film where the action occurs
false
inflammation an granuloma
hypaque
AgBr
2. What type of films need a lot more x-ray exposure and more time to expose them
15 cm
non-screen
reflective layer
rapidly dividing
3. If there's far or muscle in the way of an x-ray - those parts would be
grey
focal film distance
line focus principle
cathode
4. Bone - lymphatic cells - epitheilial - and hemopoietic cells are also what kind of cell?
15
sensitive cells
erythema
electrons
5. What is the term for an unknown cause
focal spot
non-screen
idiopathic
0.25mm
6. Is to the left - electrons bounce off it at a 20 degree angle
long scale of contrast
true
anode
non-screen
7. Is the source of electrons
lead cone and adjustable lead shutters
x-rays
iodine
cathode
8. Sheets of luminescent phorphor crystals on a cardboard or plastic base
intensifying screens
annulus fibrosis
rapidly dividing
4 ft
9. Give a 25% barium solution for upper GI series - and give At what dose?
scatter radiation
heel effect
3cc/#
false
10. Tilting of the tube or grid is one reason for
cathode filament
grid cutoff
iodine
fluoroscopy
11. An invisible image on the x-ray film Which becomes visible after it has been processed in the manual or automatic processor
latent image
40
unexposed AgBr
highest mA and smallest time fraction
12. An abdominal radiograph should be taken at the peak of expiration
somatic damage
true
radiographic detail
metallic silver
13. Aluminum filter
cathode
increase density
lead cone and adjustable lead shutters
decrease scatter radiation
14. When the density difference is great - there is
nucleus pulposis
reflective layer
5
high contrast
15. To utilize this - you position the thickest part of the animal towards the cathode end of the x-ray tube
high contrast
10 cm
heel effect
aluminum
16. What specific part of the eye is cloudy with a cataract
true
genetic damage
lens
radiographic detail
17. Slowly growing dividing cells are the most sensitive to the effects of ionizing radiaton
screens (phosphor layer)
reflective layer
false
stationary and rotating
18. Sheets of luminescent phosphor crystals bound together and mounted on a cardboard or plastic base
intussusception
kVp
intensifying screens
high contrast
19. Is the measurement for the maximum energy available at that setting
inverse square law
lead cone and adjustable lead shutters
true
peak kilovoltage
20. Less forgiving - high contrast - cannot tolerate changes in exposure or processing
narrow latitude film
cervical
slow film
primary
21. A layer of intensifying screen that reflects the light from the phosphor layer toward the film
the sharper the radiograph
non-screen film
reflective layer
cathode filament
22. Safe Operating Procedures
screen film
SOP
indirect relationship
0.5mm
23. We should always try and stay How many feet from our x-ray machine
increase scatter
screen film
6 ft
more x-rays produced
24. Weakness
5
paresis
inflammation an granuloma
cathode
25. Ideally is very small
supercoat
grid cutoff
focal spot
lines per centimeter
26. When a body part is greater than or equal to.....you should use a grid
direct relationship
10 cm
slow
density
27. This is caused by mutations in gonadal cells - not seen until offspring are produced - mutations are not always bad
genetic damage
radiograph
15
non-screen
28. Is the electrical current that heats the filament
higher mA
false
milliamperage
no contrast
29. Collimator
paresis
erythema
decrease scatter radiation
focal spot
30. A clear protective layer on radiographic film
15% rule for kVp
supercoat
slow film
focal spot
31. Within the collimator outlines just how much is collimated
NYS Public Health Law #225
stationary and rotating
light source
lens
32. Body cells affected - damage seen during lifetime of creature - can be immediate or cummulative
1/30
somatic damage
fluoroscopy
stops peristalsis
33. In which processing solution do unionized (green) AgBr crystals get removed from the film
film cassette
fixer
non-screen film
5
34. The exact area of the anode that the electrons hit
highest mA and smallest time fraction
focal spot
Maximum Permissible Dose
cervical
35. Must be radiolucent
mAs
screens (phosphor layer)
film cassette
screens (phosphor layer)
36. Improper centering of grid is one reason for
peak kilovoltage
milliamperage
false
grid cutoff
37. What type of bone tumors started elsewhere and spread to the location it was found
focal film distance
alopecia
secondary
cathode
38. AgBr + light =
0.25mm
black
focal spot
screen film
39. Is influenced by quantity of x-rays(mAs) - quality of x-rays (kVp) - type and thickness of tissue being x-rayed
cathode filament
density
grid efficiency
collimator
40. MAs for abdomen (standard mAs) x=?
5
back scatter
joint mouse
wide latitude film
41. Grid helps reduce the amount of......
caudal border of scapula
intussusception
afterglow
scatter radiation
42. When.....collide with the anode - 99% of energy is released in the form of heat - and 1% of energy is in the form of x-rays
slow film
focused and unfocused or parallel
electrons
heel effect
43. A living animal - with tissue densities such as fat - muscle - fluid - and air
decrease scatter radiation
genetic and somatic
long scale of contrast
slow
44. These screens are the most common type - they give good resolution with relatively low exposure
medium or par
15% rule for kVp
x-rays
10 cm
45. Loss of movement in legs (front and/or back)
paralysis
kVp or mAs
2
erythema
46. If there's no object in the way of an x-ray - the picture would be
potter-bucky diagram
sensitive cells
black
caudal border of scapula
47. DJD is also called
phosphor layer
cathode
arthritis
grid
48. This stage of pregnancy is the most dangerous for the fetus
first trimester
black
highest mA and smallest time fraction
medium film
49. Negative contrast agents appear what color on a radiograph
joint mouse
true
more x-rays produced
black
50. The tendency of a luminescent compound to continue to give off light after x-radiation has stopped
true
afterglow
grid cutoff
somatic damage