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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. These screens are the most common type - they give good resolution with relatively low exposure
milliamperage
whiter
black
medium or par
2. If barium leaks into the abdomen or lungs - it can cause what
inflammation an granuloma
15% rule for kVp
more x-rays produced
increase scatter
3. Grid helps reduce the amount of......
increase density
wide latitude film
osteomyelitis
scatter radiation
4. Monitors personal exposure to radiation
nucleus pulposis
increase scatter
false
dosimeter
5. Is the most common artifact in radiography
5
movement
latent image
pneumocystogram
6. An invisible image on the x-ray film Which becomes visible after it has been processed in the manual or automatic processor
stationary and rotating
x-rays
5
latent image
7. What type of bone tumors started in the location they were first found
primary
10 cm
Maximum Permissible Dose
x-rays
8. What is the term for a negative contrast cystogram where we inject air
adjustable lead shutters
pneumocystogram
paresis
silver halide
9. Areas on film that should be black but come out grey - due to storage
radiograph
fogging
focused and unfocused or parallel
non-screen
10. MAs for chest 1/2x =?
false
2.5
abnormalities
stops peristalsis
11. Must change if the FFD changes
2
lens
mAs
long scale of contrast
12. Calcium 'bridges' between adjacent vertebrae
milliamperage
density
long scale of contrast
spondylosis
13. The layer of the film where the action occurs
clinical signs
adjustable lead shutters
AgBr
slow
14. Can cause damage to living cells through the process of excitation or ionization of electrons in the orbits around atoms
increase scatter
genetic and somatic
high contrast
x-rays
15. Has a filament made of tungsten - due to the high melting point
cathode and anode
intensifying screens
large crystals - small crystals
fluoroscopy
16. The focused grid is upside down - is one reason for
phosphor layer
non-screen film
silver halide
grid cutoff
17. What type of bone tumors started elsewhere and spread to the location it was found
whiter
secondary
lens
15
18. The x-ray machine we've been using has a rotating anode
true
genetic and somatic
x-rays
stationary anode
19. To double the density
abnormalities
the sharper the radiograph
double mAs
6 ft
20. Types of cell damage
genetic and somatic
line focus principle
true
lead cone and adjustable lead shutters
21. If the kVp is increased by 15% - the density is doubled
idiopathic
screen film
15% rule for kVp
electrons
22. These screens are high speed - they decrease exposure - poorer detail - able to penetrate thicker areas
metallic silver
fast
mAs
cassette
23. The exact area of the anode that the electrons hit
focal spot
sensitive cells
santes' rule
focused and unfocused or parallel
24. Increase what value to penetrate thick body parts
increase density
potter-bucky diagram
scatter radiation
kVp
25. X-ray gloves have to have....of lead equivalent
phosphor layer dyes
joint mouse
0.5mm
false
26. Between density and mAs
diskospondylitis
x-rays
black
direct relationship
27. These crystals will turn white/clear when processing film
screens (phosphor layer)
unexposed AgBr
inverse square law
whiter
28. Calcium tungstate - rare earth elements
black
grid cutoff
phosphor type
back scatter
29. The smaller the focal spot
paresis
joint mouse
the sharper the radiograph
heel effect
30. Body cells affected - damage seen during lifetime of creature - can be immediate or cummulative
mAs
somatic damage
focal spot
fast film
31. Collimator
rapidly dividing
x-rays
grid cutoff
decrease scatter radiation
32. Amount of radiation a person can recieve in a calendar year
grid cutoff
5
10
Maximum Permissible Dose
33. Film that is more sensitive to ionizing radiation than to fluorescent light
first trimester
kVp
2
non-screen film
34. What type of film has no screens or film cassettes
high contrast
non-screen
no contrast
luxations
35. What is the term for an unknown cause
x-rays
false
idiopathic
osteomyelitis
36. Tilting of the tube or grid is one reason for
black
rapidly dividing
Maximum Permissible Dose
grid cutoff
37. These cells are the most sensitive to radiation
rapidly dividing
spondylosis
grid cutoff
santes' rule
38. What is one of the most common areas of occurance for spinal problems ( 85% dachshunds)
lens
thoracic(caudal) and lumbar
true
dosimeter
39. Lung tissue appears black (radiolucent) on a radiograph
abnormalities
true
cathode
focal film distance
40. If there's no object in the way of an x-ray - the picture would be
false
light source
black
false
41. The distance from the x-ray tube to the x-ray machine is the SID (source image distance) - or the FFD (also known as....)
hypaque
focal film distance
grid cutoff
mAs
42. A clear protective layer on radiographic film
milliamperage
kVp
supercoat
contrast
43. This stage of pregnancy is the most dangerous for the fetus
line focus principle
kVp
idiopathic
first trimester
44. Positive contrast agents appear what color on a radiograph
white
short scale of contrast
slow
unexposed AgBr
45. Must increase.....to compensate for x-ray absorption by the grid. (we triple our mAs)
density
x-rays
kVp or mAs
focal spot
46. This is inversely proportional to screen speed
radiographic detail
thoracic(caudal) and lumbar
true
true
47. Types of grids
6 ft
speed
focused and unfocused or parallel
effective focal spot
48. Faster screens/less detail; slower screens/more detail
large crystals - small crystals
milliamperage
iodine
AgBr
49. If you use an mA of 300 - What time fraction must i use to get an mAs of 10?
1/30
true
nucleus pulposis
lead cone and adjustable lead shutters
50. What needs to have high levels of x-ray absorbtion
kVp or mAs
screens (phosphor layer)
highest mA and smallest time fraction
cathode and anode