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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. Give a 25% barium solution for upper GI series - and give At what dose?
collimator
whiter
x-rays
3cc/#
2. Is on the anode and is angled at approximately 20 degrees from vertical
white
peak kilovoltage
focal spot
metallic silver
3. What type of film gives more detailed radiographs but more exposure to everyone involved? (commonly used as dental film - or for extremities)
annulus fibrosis
idiopathic
fluoroscopy
non-screen
4. AgBr + x-rays =
non-screen film
15 cm
false
mAs
5. If there's no object in the way of an x-ray - the picture would be
white
annulus fibrosis
black
2.5
6. Redness of the skin
speed
10 cm
erythema
latent image
7. These crystals will turn white/clear when processing film
film cassette
unexposed AgBr
mAs
pneumocystogram
8. Between density and kVp
indirect relationship
milliamperage
more x-rays produced
grid
9. What needs to have high levels of x-ray to light conversion with the correct energy and color for the type of film used
intensifying screens
phosphor layer
screens (phosphor layer)
grey
10. What is one of the most common area of occurance for spinal problems (15% dobermans)
cervical
latent image
caudal border of scapula
true
11. What type of cystogram uses air and hypaque
pneumocystogram
heel effect
1/30
double contrast
12. These cells are the most sensitive to radiation
grid efficiency
rapidly dividing
true
grid cutoff
13. Aluminum filter
true
decrease scatter radiation
wide latitude film
true
14. Dislocations or separations
2.5
fast film
scatter radiation
luxations
15. Is the electrical current that heats the filament
0.5mm
density
fogging
milliamperage
16. Safe Operating Procedures
AgBr
clinical signs
SOP
false
17. This gives you the desired mAs - and it gives less time for your patient to move
highest mA and smallest time fraction
kVp
10 cm
high contrast
18. Hairloss or baldness
aluminum
alopecia
long scale of contrast
grid cutoff
19. What spinal problem do doberman's get
reflective layer
wobblers syndrome
non-screen film
x-rays
20. The efficiency of this reflects light made by phosphors back towards the film
grid cutoff
true
reflective layer
hypaque
21. Must change if the FFD changes
rotating anode
15
large crystals - small crystals
mAs
22. Has a positive charge
potter-bucky diagram
false
anode
speed
23. The back of the cassette is made of lead to decrease....
back scatter
cathode
5
large crystals - small crystals
24. White against black - like the x-ray of a plain skeleton
false
collimator
short scale of contrast
cathode
25. Compound of silver and bromine - chlorine - or iodine - all of which are in the halogen group of elements
heel effect
the higher the mA
silver halide
movement
26. Old mAs x (new FFD)2 divided by (old FFD)2
medium film
x-rays
inverse square law
non-screen film
27. If barium leaks into the abdomen or lungs - it can cause what
heel effect
inflammation an granuloma
pneumocystogram
screen film
28. With this procedure - no x-ray film is involved at all
anode
fluoroscopy
erythema
3cc/#
29. Extra pain is also called
hyperesthesia
scatter radiation
fixer
true
30. Lung tissue appears black (radiolucent) on a radiograph
first trimester
increase scatter
true
cathode and anode
31. Infection of a disk - or bone near it
diskospondylitis
the sharper the radiograph
black
40
32. The focused grid is upside down - is one reason for
unexposed AgBr
focal film distance
white
grid cutoff
33. The mAs has to do with the power of the x-rays produced
false
3cc/#
cathode
genetic and somatic
34. What gives off 4 times the amount of light photons than does the calcium tungstate (it gives off green light)
rare earth elements
hyperesthesia
osteomyelitis
joint mouse
35. With the heel effect - more x-rays tend to be in the beam toward this end of the tube
somatic damage
cathode
primary
focal spot
36. Is the device which restricts (narrows) the beam of x-rays as they leave the x-ray machine
reflective layer
collimator
true
non-screen
37. Outer layer of disk ( dries out and cracks and causes disk to herniate)
annulus fibrosis
white and black are reversed
cathode
NYS Public Health Law #225
38. What specific part of the eye is cloudy with a cataract
osteomyelitis
lens
non-screen
effective focal spot
39. Is responsible for the number or quantity of x-rays
nucleus pulposis
mAs
5
reflective layer
40. We are supposed to use a grid if the abdomen is greater than or equal to......
santes' rule
paresis
5
10 cm
41. Incorrect grid focus is one reason for
false
grid cutoff
false
kVp
42. When processing film - the black areas are made of
reflective layer
metallic silver
fast
double contrast
43. Sheets of luminescent phorphor crystals on a cardboard or plastic base
intensifying screens
cervical
x-rays
annulus fibrosis
44. Another result of the 20 degree angling
non-screen
black
cathode
heel effect
45. Pigments tend to decrease the lateral spread of light so there is increased detail
medium or par
15 cm
collimator
phosphor layer dyes
46. The x-ray machine we've been using has a rotating anode
supercoat
iodine
true
first trimester
47. A living animal - with tissue densities such as fat - muscle - fluid - and air
decrease scatter radiation
long scale of contrast
lines per centimeter
unexposed AgBr
48. Refers to the 'blackness' of a radiograph
focal spot
kVp
density
aluminum
49. To utilize this - you position the thickest part of the animal towards the cathode end of the x-ray tube
first trimester
screen film
heel effect
stops peristalsis
50. Loss of movement in legs (front and/or back)
paralysis
sensitive cells
supercoat
santes' rule