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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 the most common artifact in radiography
4 ft
movement
white and black are reversed
fluoroscopy
2. What type of film gives more detailed radiographs but more exposure to everyone involved? (commonly used as dental film - or for extremities)
whiter
cathode
iodine
non-screen
3. What type of bone tumors started in the location they were first found
cathode
focused and unfocused or parallel
kVp
primary
4. When more electrons hit the focal spot on the anode
white
false
more x-rays produced
cathode and anode
5. Pigments tend to decrease the lateral spread of light so there is increased detail
phosphor type
phosphor layer dyes
potter-bucky diagram
rare earth elements
6. The efficiency of this reflects light made by phosphors back towards the film
white and black are reversed
reflective layer
cathode
true
7. We are supposed to use a grid if the abdomen is greater than or equal to......
10 cm
cathode and anode
grid cutoff
iodine
8. Increased thickness of this leads to increased x-ray absorption and increased visible light emission from the crystals
alopecia
more x-rays produced
phosphor layer
latent image
9. Body cells affected - damage seen during lifetime of creature - can be immediate or cummulative
x-rays
medium or par
somatic damage
radiographic detail
10. These crystals will turn white/clear when processing film
grid cutoff
unexposed AgBr
high contrast
focal spot
11. Bone infection - also known as spondylitis
focal spot
40
white
osteomyelitis
12. Increase developing time and temp of developing fluid
slow
focal film distance
increase density
hyperesthesia
13. Faster screens/less detail; slower screens/more detail
large crystals - small crystals
focal spot
NYS Public Health Law #225
lens
14. What is the name for the cartilage flap in the shoulder joint that has broken free and is floating around in the joint fluid
joint mouse
narrow latitude film
intensifying screens
x-rays
15. In which processing solution do unionized (green) AgBr crystals get removed from the film
contrast
non-screen
fixer
density
16. With the heel effect - more x-rays tend to be in the beam toward this end of the tube
x-rays
cathode
increase density
decrease scatter radiation
17. If there's metal in the way of an x-ray - than no x-rays will get through and that part would be
sensitive cells
white
grid cutoff
decrease scatter radiation
18. The layer of the film where the action occurs
pneumocystogram
erythema
AgBr
intussusception
19. What are the 2 types of anodes
stationary and rotating
clinical signs
film cassette
grid focus
20. We ideally take a radiograph of the abdomen at the peak of inspiration
inverse square law
fast
rapidly dividing
false
21. Dislocations or separations
luxations
5
inversely proportional
higher mA
22. Film with silver crystals that is more sensitive to fluorescent light emitted from intensifying screens than to ionizing radiation
phosphor layer
screen film
double contrast
false
23. These screens have increased definition/detail - need to have increased radiation exposure
slow
stationary and rotating
focal film distance
screen film
24. Increased crystal size.....
more light
2.5
grid cutoff
silver halide
25. Lead equivalent for apron
0.25mm
NYS Public Health Law #225
non-screen
kVp
26. When processing film - the black areas are made of
kVp or mAs
metallic silver
kVp
line focus principle
27. If there's bone in the way of an x-ray -. those parts would be
whiter
more light
15 cm
screen film
28. What must have little or no 'afterglow'
electrons
fogging
quantum mottle
screens (phosphor layer)
29. Must increase.....to compensate for x-ray absorption by the grid. (we triple our mAs)
kVp or mAs
double mAs
contrast
rotating anode
30. Collimator
decrease scatter radiation
calcium tungstate
grid focus
lead cone and adjustable lead shutters
31. Growth - gonadal - neoplastic - and metabolically active cells are what kind of cells
grid cutoff
kVp or mAs
rapidly dividing
false
32. Is only 1/3 the size of the actual focal spot
inflammation an granuloma
14 x 17
effective focal spot
4 ft
33. Is the electrical current that heats the filament
osteomyelitis
genetic damage
milliamperage
more light
34. X-ray gloves have to have....of lead equivalent
direct relationship
large crystals - small crystals
screens (phosphor layer)
0.5mm
35. Lung tissue appears black (radiolucent) on a radiograph
stationary anode
true
mAs
cervical
36. Calcium tungstate - rare earth elements
5
2
phosphor type
erythema
37. What needs to have high levels of x-ray absorbtion
screens (phosphor layer)
15% rule for kVp
SOP
phosphor layer
38. Is determined by the ratio of the height of the lead strips to the distance between them
focused and unfocused or parallel
paresis
focal spot
grid efficiency
39. If there's far or muscle in the way of an x-ray - those parts would be
grey
iodine
secondary
SOP
40. Types of cell damage
luxations
the higher the mA
collimator
genetic and somatic
41. Another result of the 20 degree angling
heel effect
speed
milliamperage
reflective layer
42. MAs for bone views (pelvis - skull - spine) 2x =?
10
focal spot
screens (phosphor layer)
screen film
43. Screen speed is.....to the exposure required to cause it to flouresce
focused and unfocused or parallel
inversely proportional
heel effect
true
44. Can cause damage to living cells through the process of excitation or ionization of electrons in the orbits around atoms
true
40
x-rays
grid cutoff
45. Most commonly used film - compromise between graininess and speed (detail)
1/30
medium film
caudal border of scapula
indirect relationship
46. 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
electrons
decrease scatter radiation
osteomyelitis
increase scatter
47. Is the measurement for the maximum energy available at that setting
40
white and black are reversed
peak kilovoltage
narrow latitude film
48. Is the source of electrons
cathode
santes' rule
dosimeter
phosphor type
49. AgBr + light =
true
radiograph
non-screen
screen film
50. 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
grid
rotating anode
back scatter
double contrast