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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 the kVp is too low
increase scatter
no contrast
slow
Maximum Permissible Dose
2. What spinal problem do doberman's get
fluoroscopy
white and black are reversed
decrease scatter radiation
wobblers syndrome
3. Animal has broken femur - it's ideal to have How many radiographs for diagnostic purposes
2
density
non-screen
double contrast
4. Screens are classified according to
cervical
non-screen
kVp
speed
5. What needs to have high levels of x-ray to light conversion with the correct energy and color for the type of film used
grid cutoff
spondylosis
paralysis
screens (phosphor layer)
6. Growth - gonadal - neoplastic - and metabolically active cells are what kind of cells
cervical
x-rays
focal spot
rapidly dividing
7. Types of grids
screen film
focused and unfocused or parallel
wobblers syndrome
phosphor layer dyes
8. When doing a lateral radiograph of the thorax/chest - the x-ray beam should be centered over what specific anatomical landmark
first trimester
back scatter
white
caudal border of scapula
9. The electrical current sent through the filament to cause this electron release is called
alopecia
grey
non-screen film
milliamperage
10. Dislocations or separations
0.5mm
annulus fibrosis
40
luxations
11. We are supposed to use a grid if the abdomen is greater than or equal to......
screen film
10 cm
true
kVp
12. The efficiency of this reflects light made by phosphors back towards the film
reflective layer
intensifying screens
fast film
sensitive cells
13. Incorrect grid focus is one reason for
focal spot
grid cutoff
grid efficiency
true
14. This pertains to the size of the electron cloud and thus directly to the number of x-ray produced
mAs
density
long scale of contrast
non-screen film
15. On a lateral view of the chest the aorta is dorsal to the caudal vena cava
rotating anode
metallic silver
false
true
16. Lead equivalent for apron
10 cm
0.25mm
visible light
3cc/#
17. AgBr + x-rays =
grid cutoff
true
arthritis
non-screen film
18. This stage of pregnancy is the most dangerous for the fetus
first trimester
potter-bucky diagram
quantum mottle
diskospondylitis
19. Has a negative charge
joint mouse
14 x 17
cathode
visible light
20. Loss of movement in legs (front and/or back)
2
grid cutoff
whiter
paralysis
21. An abdominal radiograph should be taken at the peak of expiration
hyperesthesia
film cassette
true
quantum mottle
22. Extra pain is also called
hyperesthesia
false
film cassette
true
23. This is inversely proportional to screen speed
x-rays
radiographic detail
screen film
phosphor type
24. As this increases - the intensity of the x-ray beam decreases - so the beam intensity increases - and the mAs must decrease to compensate
rare earth elements
FFD
3cc/#
10 cm
25. What is one of the most common area of occurance for spinal problems (15% dobermans)
cassette
heel effect
mAs
cervical
26. To double the density
black
contrast
stationary anode
double mAs
27. MAs for abdomen (standard mAs) x=?
nucleus pulposis
short scale of contrast
decrease scatter radiation
5
28. Infection of a disk - or bone near it
10 cm
density
diskospondylitis
phosphor layer
29. Increase developing time and temp of developing fluid
double mAs
increase density
arthritis
inflammation an granuloma
30. X-ray gloves have to have....of lead equivalent
black
silver halide
false
0.5mm
31. We should always try and stay How many feet from our x-ray machine
6 ft
film cassette
afterglow
long scale of contrast
32. Must increase.....to compensate for x-ray absorption by the grid. (we triple our mAs)
AgBr
fast film
kVp or mAs
stops peristalsis
33. If there's bone in the way of an x-ray -. those parts would be
intensifying screens
whiter
wobblers syndrome
cassette
34. When a body part is greater than or equal to.....you should use a grid
10 cm
6 ft
first trimester
x-rays
35. The layer of the film where the action occurs
black
AgBr
latent image
film cassette
36. When more electrons hit the focal spot on the anode
cassette
more x-rays produced
phosphor type
cathode filament
37. The picture formed after the film has been exposed to x-rays and then processed into a visible image.
radiograph
diskospondylitis
aluminum
the higher the mA
38. Why do we not give atropine with a contrast radiograph
scatter radiation
back scatter
stops peristalsis
lead cone and adjustable lead shutters
39. This is caused by mutations in gonadal cells - not seen until offspring are produced - mutations are not always bad
true
kVp
genetic damage
abnormalities
40. If the kVp is increased by 15% - the density is doubled
fluoroscopy
mAs
grid efficiency
15% rule for kVp
41. What is the difference between fluoroscopy and a regular radiograph
peak kilovoltage
x-rays
FFD
white and black are reversed
42. 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)
calcium tungstate
focused and unfocused or parallel
non-screen
more x-rays produced
43. With the heel effect - more x-rays tend to be in the beam toward this end of the tube
0.25mm
cathode
x-rays
grid cutoff
44. DJD is also called
false
2
arthritis
focal spot
45. If the x-ray tube is not 36-40 inches from the grid - this is called the
dosimeter
grid cutoff
electrons
cathode filament
46. Is on the anode and is angled at approximately 20 degrees from vertical
non-screen film
high contrast
secondary
focal spot
47. Between density and mAs
dosimeter
direct relationship
2.5
false
48. Extra vertebrae - scoliosis - fused vertebrae are all examples of
rapidly dividing
screen film
abnormalities
grid cutoff
49. The shorter the wavelength of the x-ray - the more powerful the x-ray is
true
intensifying screens
aluminum
joint mouse
50. Is to the right - it produces the electrons
screens (phosphor layer)
cathode
secondary
grid focus