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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. If you use an mA of 300 - What time fraction must i use to get an mAs of 10?
1/30
scatter radiation
annulus fibrosis
no contrast
2. Is the electrical current that heats the filament
milliamperage
fast film
decrease scatter radiation
diskospondylitis
3. Affects both density and contrast
line focus principle
higher mA
kVp
true
4. Increase developing time and temp of developing fluid
quantum mottle
santes' rule
10 cm
increase density
5. When the AgBr reacts and ionizes with light or x-rays - than at this point - What is on the film is known as the
lines per centimeter
collimator
latent image
stationary and rotating
6. Ideally is very small
non-screen
phosphor layer dyes
paralysis
focal spot
7. A clear protective layer on radiographic film
supercoat
lead cone and adjustable lead shutters
genetic and somatic
kVp
8. Bone - lymphatic cells - epitheilial - and hemopoietic cells are also what kind of cell?
anode
0.5mm
sensitive cells
x-rays
9. This is caused by mutations in gonadal cells - not seen until offspring are produced - mutations are not always bad
latent image
cassette
genetic damage
FFD
10. What type of films need a lot more x-ray exposure and more time to expose them
decrease scatter radiation
white and black are reversed
10
non-screen
11. What is the difference between fluoroscopy and a regular radiograph
white and black are reversed
sensitive cells
false
somatic damage
12. What is the term for when the animal's bowel engulfs a piece of bowel distal to it - causing blockage
quantum mottle
intussusception
mAs
the higher the mA
13. Is the measurement for the maximum energy available at that setting
stops peristalsis
kVp
peak kilovoltage
Maximum Permissible Dose
14. With this procedure - no x-ray film is involved at all
fluoroscopy
increase scatter
rapidly dividing
stationary anode
15. A lightproof encasement designed to hold x-ray film and intensifying screens in close contact
increase scatter
cassette
reflective layer
grid cutoff
16. If there's no object in the way of an x-ray - the picture would be
milliamperage
iodine
black
narrow latitude film
17. Radiograph of a dogs skeleton has a long scale of contrast
false
grid cutoff
phosphor layer
grid focus
18. Between density and mAs
latent image
direct relationship
rapidly dividing
fogging
19. Tilting of the tube or grid is one reason for
40
screens (phosphor layer)
increase density
grid cutoff
20. When a body part is greater than or equal to.....you should use a grid
10 cm
Maximum Permissible Dose
grid cutoff
adjustable lead shutters
21. An abdominal radiograph should be taken at the peak of expiration
15
true
aluminum
secondary
22. Is the density difference between 2 adjacent areas on a radiograph
reflective layer
grid cutoff
contrast
rare earth elements
23. Between density and kVp
indirect relationship
fluoroscopy
collimator
heel effect
24. When processing film - the black areas are made of
high contrast
latent image
true
metallic silver
25. They don't move - they're found in dental units and portable units - cannot withstand the heat produced from large units
annulus fibrosis
15
electrons
stationary anode
26. When more electrons hit the focal spot on the anode
contrast
lead cone and adjustable lead shutters
screen film
more x-rays produced
27. This gives you the desired mAs - and it gives less time for your patient to move
false
highest mA and smallest time fraction
metallic silver
cathode filament
28. What type of film gives more detailed radiographs but more exposure to everyone involved? (commonly used as dental film - or for extremities)
mAs
non-screen
increase density
1/30
29. If the grid is stationary - more lines that are finer are less apt to show up on a radiograph - this is called....
screens (phosphor layer)
lines per centimeter
true
fluoroscopy
30. Screens are classified according to
electrons
speed
cathode
film cassette
31. Must be radiolucent
film cassette
visible light
anode
movement
32. Dislocations or separations
15
NYS Public Health Law #225
movement
luxations
33. If the kVp is too high
increase scatter
reflective layer
density
latent image
34. Film that is more sensitive to ionizing radiation than to fluorescent light
non-screen film
mAs
hyperesthesia
potter-bucky diagram
35. Is located in a focusing cup made of molybdenum which has a high melting point and helps to direct the electrons produced toward the cathode
secondary
genetic and somatic
cathode filament
intensifying screens
36. As this increases - the intensity of the x-ray beam decreases - so the beam intensity increases - and the mAs must decrease to compensate
FFD
density
grid efficiency
back scatter
37. 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
x-rays
heel effect
electrons
secondary
38. Extra pain is also called
radiographic detail
true
speed
hyperesthesia
39. If there's far or muscle in the way of an x-ray - those parts would be
focal spot
grey
lead cone and adjustable lead shutters
true
40. This stage of pregnancy is the most dangerous for the fetus
scatter radiation
calcium tungstate
first trimester
increase scatter
41. Measures the power of penetrability (quality) of the x-rays produced
inflammation an granuloma
kVp
effective focal spot
medium film
42. MAs for ANY part - when using a grid 3x= ?
15
sensitive cells
hypaque
stops peristalsis
43. AgBr + light =
potter-bucky diagram
true
kVp or mAs
screen film
44. The back of the cassette is made of lead to decrease....
medium film
pneumocystogram
adjustable lead shutters
back scatter
45. Increase mAs and kVp in order to...
genetic and somatic
increase density
black
alopecia
46. Rotating anode
thoracic(caudal) and lumbar
phosphor layer dyes
line focus principle
decrease scatter radiation
47. Grid helps reduce the amount of......
scatter radiation
anode
clinical signs
40
48. The layer of the film where the action occurs
focused and unfocused or parallel
white
stops peristalsis
AgBr
49. A type of electromagnetic radiation which have a shorter wavelength than visible light
true
back scatter
potter-bucky diagram
x-rays
50. The focused grid is upside down - is one reason for
grid cutoff
true
adjustable lead shutters
santes' rule