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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. Pigments tend to decrease the lateral spread of light so there is increased detail
high contrast
light source
mAs
phosphor layer dyes
2. A clear protective layer on radiographic film
supercoat
anode
cathode
non-screen film
3. What type of cystogram uses air and hypaque
mAs
double contrast
scatter radiation
14 x 17
4. Screens are classified according to
quantum mottle
grid cutoff
visible light
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
screens (phosphor layer)
primary
false
wide latitude film
6. MAs for abdomen (standard mAs) x=?
phosphor layer dyes
5
cathode
2
7. When processing film - the black areas are made of
line focus principle
mAs
metallic silver
true
8. Means more electrons will be released from the filament and directed at the anode
higher mA
screen film
decrease scatter radiation
true
9. Grid helps reduce the amount of......
grid cutoff
scatter radiation
milliamperage
narrow latitude film
10. Slowly growing dividing cells are the most sensitive to the effects of ionizing radiaton
false
cervical
milliamperage
inflammation an granuloma
11. If the kVp is increased by 15% - the density is doubled
lead cone and adjustable lead shutters
15% rule for kVp
reflective layer
higher mA
12. Improper centering of grid is one reason for
grid cutoff
decrease scatter radiation
secondary
inversely proportional
13. To utilize this - you position the thickest part of the animal towards the cathode end of the x-ray tube
heel effect
fogging
grid focus
cathode filament
14. A living animal - with tissue densities such as fat - muscle - fluid - and air
fast film
long scale of contrast
15
screens (phosphor layer)
15. If there's far or muscle in the way of an x-ray - those parts would be
aluminum
grey
non-screen
rapidly dividing
16. This is caused by mutations in gonadal cells - not seen until offspring are produced - mutations are not always bad
genetic damage
grid cutoff
black
paresis
17. DJD is also called
2.5
arthritis
double contrast
fluoroscopy
18. Is influenced by quantity of x-rays(mAs) - quality of x-rays (kVp) - type and thickness of tissue being x-rayed
abnormalities
density
inverse square law
increase density
19. These screens are high speed - they decrease exposure - poorer detail - able to penetrate thicker areas
adjustable lead shutters
x-rays
silver halide
fast
20. An invisible image on the x-ray film Which becomes visible after it has been processed in the manual or automatic processor
AgBr
latent image
erythema
increase scatter
21. What spinal problem do doberman's get
wobblers syndrome
iodine
rapidly dividing
contrast
22. Less forgiving - high contrast - cannot tolerate changes in exposure or processing
cervical
kVp or mAs
narrow latitude film
non-screen
23. X-ray machines come with a set one - we cannot adjust it
focal spot
10 cm
genetic damage
2.5
24. Does move - has disks that rotate at high speeds - this helps spread out the heat that's produced as the electrons hit the focal spot
kVp
intussusception
black
rotating anode
25. Ideally is very small
rapidly dividing
false
film cassette
focal spot
26. Increase what value to penetrate thick body parts
0.25mm
black
kVp
erythema
27. We are supposed to use a grid if the abdomen is greater than or equal to......
5
fogging
false
10 cm
28. This gives you the desired mAs - and it gives less time for your patient to move
false
focused and unfocused or parallel
highest mA and smallest time fraction
effective focal spot
29. When doing a lateral radiograph of the thorax/chest - the x-ray beam should be centered over what specific anatomical landmark
anode
caudal border of scapula
non-screen
15 cm
30. The type of collimator that we have here
radiographic detail
medium or par
adjustable lead shutters
latent image
31. Film with: ultra speed - grainier image - less exposure needed
inversely proportional
anode
fast film
latent image
32. This is used to take 'real-time' radiographs - used a lot in horses
grid cutoff
fluoroscopy
milliamperage
narrow latitude film
33. Negative contrast agents appear what color on a radiograph
luxations
phosphor layer
black
decrease scatter radiation
34. MAs for bone views (pelvis - skull - spine) 2x =?
focal spot
false
x-rays
10
35. When the AgBr reacts and ionizes with light or x-rays - than at this point - What is on the film is known as the
15
latent image
hypaque
genetic damage
36. Calcium tungstate - rare earth elements
abnormalities
rapidly dividing
0.5mm
phosphor type
37. Sheets of luminescent phorphor crystals on a cardboard or plastic base
pneumocystogram
true
effective focal spot
intensifying screens
38. X-ray gloves have to have....of lead equivalent
false
intussusception
10 cm
0.5mm
39. These screens are the most common type - they give good resolution with relatively low exposure
kVp
high contrast
movement
medium or par
40. Outer layer of disk ( dries out and cracks and causes disk to herniate)
white
light source
annulus fibrosis
contrast
41. They don't move - they're found in dental units and portable units - cannot withstand the heat produced from large units
screens (phosphor layer)
stationary anode
genetic damage
slow
42. In which processing solution do unionized (green) AgBr crystals get removed from the film
fixer
0.5mm
2
iodine
43. White against black - like the x-ray of a plain skeleton
15% rule for kVp
false
false
short scale of contrast
44. Has a positive charge
non-screen
anode
false
wide latitude film
45. What is the name for the cartilage flap in the shoulder joint that has broken free and is floating around in the joint fluid
cathode
joint mouse
wide latitude film
hypaque
46. Is the device which restricts (narrows) the beam of x-rays as they leave the x-ray machine
collimator
phosphor layer dyes
cassette
intensifying screens
47. The x-ray machine we've been using has a rotating anode
fluoroscopy
focal film distance
slow film
true
48. If perforation is suspected - what compound do we use when radiographing
iodine
medium or par
grid cutoff
heel effect
49. Weakness
paresis
mAs
line focus principle
0.5mm
50. Between density and mAs
fluoroscopy
direct relationship
more light
false