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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. A clear protective layer on radiographic film
intensifying screens
supercoat
narrow latitude film
osteomyelitis
2. There are......intensifying screens within a cassette
latent image
2
false
focal spot
3. Pigments tend to decrease the lateral spread of light so there is increased detail
phosphor layer dyes
lead cone and adjustable lead shutters
inflammation an granuloma
increase density
4. Extra vertebrae - scoliosis - fused vertebrae are all examples of
screen film
stops peristalsis
phosphor layer
abnormalities
5. Has a negative charge
cathode
15 cm
focal spot
anode
6. General purpose film - forgiving
latent image
false
wide latitude film
0.5mm
7. Tilting of the tube or grid is one reason for
latent image
grid cutoff
0.25mm
true
8. Increased crystal size.....
more light
joint mouse
rapidly dividing
cervical
9. Most commonly used film - compromise between graininess and speed (detail)
screen film
black
focal film distance
medium film
10. Bone - lymphatic cells - epitheilial - and hemopoietic cells are also what kind of cell?
cervical
sensitive cells
focal spot
10 cm
11. Is the measurement for the maximum energy available at that setting
decrease scatter radiation
peak kilovoltage
10 cm
kVp
12. X-ray machines come with a set one - we cannot adjust it
black
focal spot
rapidly dividing
2
13. Sheets of luminescent phorphor crystals on a cardboard or plastic base
short scale of contrast
annulus fibrosis
intensifying screens
more light
14. AgBr + x-rays =
focused and unfocused or parallel
non-screen film
radiographic detail
genetic damage
15. When more electrons hit the focal spot on the anode
15
more x-rays produced
density
dosimeter
16. What needs to have high levels of x-ray to light conversion with the correct energy and color for the type of film used
cathode filament
screens (phosphor layer)
electrons
iodine
17. When the AgBr reacts and ionizes with light or x-rays - than at this point - What is on the film is known as the
cathode
double mAs
phosphor type
latent image
18. Screens are classified according to
10 cm
more x-rays produced
large crystals - small crystals
speed
19. Is the electrical current that heats the filament
collimator
adjustable lead shutters
milliamperage
anode
20. What type of film has no screens or film cassettes
non-screen
more light
mAs
no contrast
21. Body cells affected - damage seen during lifetime of creature - can be immediate or cummulative
latent image
luxations
0.25mm
somatic damage
22. The x-ray machine we've been using has a rotating anode
non-screen
iodine
decrease scatter radiation
true
23. Safe Operating Procedures
non-screen film
short scale of contrast
SOP
lines per centimeter
24. Size film we use here
collimator
hyperesthesia
wobblers syndrome
14 x 17
25. These screens have increased definition/detail - need to have increased radiation exposure
rapidly dividing
luxations
cathode
slow
26. Old mAs x (new FFD)2 divided by (old FFD)2
6 ft
radiograph
heel effect
inverse square law
27. On a lateral view of the chest the aorta is dorsal to the caudal vena cava
first trimester
increase scatter
increase density
true
28. This stage of pregnancy is the most dangerous for the fetus
spondylosis
first trimester
phosphor layer dyes
cathode
29. Distance from the grid to the x-ray tube (36-40 inches)
true
grid focus
10 cm
contrast
30. With the heel effect - more x-rays tend to be produced toward the cathode end
fogging
film cassette
true
non-screen
31. Longer wavelengths of electromagnetic radiation have more penetrating power
fogging
higher mA
false
thoracic(caudal) and lumbar
32. Types of grids
focused and unfocused or parallel
slow film
cathode
clinical signs
33. When processing film - the black areas are made of
metallic silver
4 ft
true
mAs
34. Must change if the FFD changes
grid focus
intensifying screens
true
mAs
35. A device that moves the grid back and forth under the table. it helps to prevent grid lines from showing
abnormalities
idiopathic
potter-bucky diagram
grid efficiency
36. What type of bone tumors started in the location they were first found
osteomyelitis
rapidly dividing
adjustable lead shutters
primary
37. MAs for ANY part - when using a grid 3x= ?
15
genetic and somatic
grey
14 x 17
38. If barium leaks into the abdomen or lungs - it can cause what
cathode
radiograph
density
inflammation an granuloma
39. This is inversely proportional to screen speed
primary
radiographic detail
10
true
40. MAs for abdomen (standard mAs) x=?
5
fast film
large crystals - small crystals
non-screen film
41. In which processing solution do unionized (green) AgBr crystals get removed from the film
more light
stationary and rotating
focal spot
fixer
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
narrow latitude film
first trimester
kVp
43. What needs to have high levels of x-ray absorbtion
SOP
screens (phosphor layer)
cathode
clinical signs
44. If there's no object in the way of an x-ray - the picture would be
cathode
0.5mm
non-screen film
black
45. Increase mAs and kVp in order to...
screens (phosphor layer)
scatter radiation
increase density
15
46. Can cause damage to living cells through the process of excitation or ionization of electrons in the orbits around atoms
latent image
screens (phosphor layer)
white and black are reversed
x-rays
47. These screens are the most common type - they give good resolution with relatively low exposure
lead cone and adjustable lead shutters
medium or par
false
fluoroscopy
48. Film with: ultra speed - grainier image - less exposure needed
stationary and rotating
back scatter
screen film
fast film
49. White against black - like the x-ray of a plain skeleton
3cc/#
paralysis
focal spot
short scale of contrast
50. Must increase.....to compensate for x-ray absorption by the grid. (we triple our mAs)
kVp or mAs
whiter
false
3cc/#