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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. Is influenced by quantity of x-rays(mAs) - quality of x-rays (kVp) - type and thickness of tissue being x-rayed
medium or par
non-screen
aluminum
density
2. This is inversely proportional to screen speed
grid cutoff
increase scatter
unexposed AgBr
radiographic detail
3. If the grid is stationary - more lines that are finer are less apt to show up on a radiograph - this is called....
lines per centimeter
radiograph
caudal border of scapula
phosphor layer
4. Increase developing time and temp of developing fluid
true
2.5
focused and unfocused or parallel
increase density
5. White against black - like the x-ray of a plain skeleton
short scale of contrast
pneumocystogram
visible light
heel effect
6. If there's no object in the way of an x-ray - the picture would be
black
4 ft
potter-bucky diagram
false
7. MAs for extremities
somatic damage
5
focal spot
screen film
8. With what kind of typical film do we get 95% exposure due to visible light and 5% is due to the x-rays directly
cathode
iodine
screen film
increase scatter
9. Safe Operating Procedures
SOP
film cassette
light source
milliamperage
10. Film with: high detail - minimal graininess - increased exposure
first trimester
0.5mm
slow film
double contrast
11. The layer of the film where the action occurs
rotating anode
annulus fibrosis
AgBr
phosphor layer
12. Between density and mAs
intensifying screens
genetic damage
latent image
direct relationship
13. Can cause damage to living cells through the process of excitation or ionization of electrons in the orbits around atoms
paresis
secondary
false
x-rays
14. The 2 types of collimators are
cervical
grid cutoff
lead cone and adjustable lead shutters
direct relationship
15. Within the collimator outlines just how much is collimated
light source
aluminum
15% rule for kVp
the higher the mA
16. Bone infection - also known as spondylitis
supercoat
false
osteomyelitis
joint mouse
17. Weakness
thoracic(caudal) and lumbar
paresis
unexposed AgBr
phosphor layer
18. Radiograph of a dogs skeleton has a long scale of contrast
reflective layer
false
decrease scatter radiation
phosphor type
19. Between density and kVp
3cc/#
density
indirect relationship
inverse square law
20. AgBr + light =
screen film
true
electrons
non-screen film
21. 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
cathode
10 cm
supercoat
electrons
22. When more electrons hit the focal spot on the anode
screen film
short scale of contrast
more x-rays produced
slow
23. X-ray machines come with a set one - we cannot adjust it
scatter radiation
the higher the mA
phosphor layer dyes
focal spot
24. Crystals + x-rays = ?
visible light
screen film
paralysis
10 cm
25. Increased crystal size.....
slow film
more light
focal spot
true
26. MAs for ANY part - when using a grid 3x= ?
false
abnormalities
15
rare earth elements
27. Positive contrast agents appear what color on a radiograph
kVp
white
mAs
more x-rays produced
28. Dislocations or separations
black
dosimeter
milliamperage
luxations
29. What is the term for a negative contrast cystogram where we inject air
spondylosis
visible light
cassette
pneumocystogram
30. 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)
higher mA
calcium tungstate
luxations
indirect relationship
31. Film that is more sensitive to ionizing radiation than to fluorescent light
Maximum Permissible Dose
non-screen film
high contrast
stationary anode
32. Rotating anode
potter-bucky diagram
wobblers syndrome
decrease scatter radiation
effective focal spot
33. Improper centering of grid is one reason for
joint mouse
grid cutoff
medium or par
diskospondylitis
34. If you use an mA of 300 - What time fraction must i use to get an mAs of 10?
slow film
fast
1/30
hyperesthesia
35. This gives you the desired mAs - and it gives less time for your patient to move
AgBr
highest mA and smallest time fraction
clinical signs
high contrast
36. Grid helps reduce the amount of......
thoracic(caudal) and lumbar
true
hypaque
scatter radiation
37. A clear protective layer on radiographic film
supercoat
true
true
indirect relationship
38. Increase mAs and kVp in order to...
caudal border of scapula
heel effect
increase density
black
39. Is the source of electrons
annulus fibrosis
2
cathode
anode
40. Extra pain is also called
focal spot
dosimeter
hyperesthesia
rare earth elements
41. The type of collimator that we have here
intussusception
adjustable lead shutters
sensitive cells
collimator
42. What is the term for when the animal's bowel engulfs a piece of bowel distal to it - causing blockage
true
grid
intussusception
effective focal spot
43. When the density difference is great - there is
cathode
true
line focus principle
high contrast
44. An abdominal radiograph should be taken at the peak of expiration
collimator
focal spot
true
santes' rule
45. Slowly growing dividing cells are the most sensitive to the effects of ionizing radiaton
light source
false
mAs
FFD
46. MAs for bone views (pelvis - skull - spine) 2x =?
true
screen film
10
sensitive cells
47. Is the electrical current that heats the filament
10 cm
milliamperage
film cassette
wide latitude film
48. What are the 2 types of anodes
visible light
santes' rule
intussusception
stationary and rotating
49. Hairloss or baldness
contrast
alopecia
nucleus pulposis
2
50. Lead equivalent for apron
black
0.25mm
alopecia
genetic damage