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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. X-ray machines come with a set one - we cannot adjust it
hyperesthesia
focal spot
non-screen
fogging
2. What specific part of the eye is cloudy with a cataract
non-screen
lens
false
decrease scatter radiation
3. If the kVp is increased by 15% - the density is doubled
15% rule for kVp
5
scatter radiation
cathode filament
4. 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
inversely proportional
white and black are reversed
arthritis
5. The x-ray machine we've been using has a rotating anode
annulus fibrosis
heel effect
focused and unfocused or parallel
true
6. Is only 1/3 the size of the actual focal spot
calcium tungstate
afterglow
increase density
effective focal spot
7. Calcium tungstate - rare earth elements
0.5mm
1/30
focused and unfocused or parallel
phosphor type
8. Safe Operating Procedures
screen film
slow
fixer
SOP
9. Between density and kVp
indirect relationship
kVp
visible light
grid cutoff
10. Film with: ultra speed - grainier image - less exposure needed
fast film
stationary and rotating
cathode
AgBr
11. These screens have increased definition/detail - need to have increased radiation exposure
focused and unfocused or parallel
cathode
slow
anode
12. To utilize this - you position the thickest part of the animal towards the cathode end of the x-ray tube
heel effect
radiograph
increase density
the higher the mA
13. Collimator
silver halide
collimator
non-screen film
decrease scatter radiation
14. Weakness
paresis
nucleus pulposis
screen film
somatic damage
15. These screens are the most common type - they give good resolution with relatively low exposure
medium or par
kVp or mAs
the sharper the radiograph
wide latitude film
16. The efficiency of this reflects light made by phosphors back towards the film
grey
2
supercoat
reflective layer
17. A type of electromagnetic radiation which have a shorter wavelength than visible light
indirect relationship
x-rays
joint mouse
intensifying screens
18. Pigments tend to decrease the lateral spread of light so there is increased detail
phosphor layer dyes
10
fluoroscopy
grid efficiency
19. The focused grid is upside down - is one reason for
idiopathic
peak kilovoltage
grid cutoff
FFD
20. What must have little or no 'afterglow'
cathode
medium film
screens (phosphor layer)
inflammation an granuloma
21. What is the term for when the animal's bowel engulfs a piece of bowel distal to it - causing blockage
cathode
intussusception
fluoroscopy
screen film
22. The effective focal spot is only 1/3 the size of the actual focal spot. this is called the
SOP
cathode
line focus principle
grid cutoff
23. If the kVp is too high
increase scatter
mAs
0.5mm
lead cone and adjustable lead shutters
24. Is responsible for the number or quantity of x-rays
whiter
more x-rays produced
mAs
wobblers syndrome
25. Increased thickness of this leads to increased x-ray absorption and increased visible light emission from the crystals
increase scatter
SOP
adjustable lead shutters
phosphor layer
26. There are......intensifying screens within a cassette
caudal border of scapula
osteomyelitis
false
2
27. The 2 types of collimators are
cassette
collimator
cathode
lead cone and adjustable lead shutters
28. These screens are high speed - they decrease exposure - poorer detail - able to penetrate thicker areas
fast
mAs
mAs
genetic and somatic
29. The greater the number of electrons released
nucleus pulposis
latent image
the higher the mA
kVp
30. If you use an mA of 300 - What time fraction must i use to get an mAs of 10?
grid cutoff
hyperesthesia
1/30
focal spot
31. Are produced when electrons are slowed down or stopped by atoms in the target area where they are aimed
0.5mm
no contrast
grid
x-rays
32. Cassettes can be made of.....Which is the type here - or they can be made of magnesium - vinyl - etc
grid efficiency
aluminum
erythema
increase scatter
33. Negative contrast agents appear what color on a radiograph
reflective layer
black
higher mA
latent image
34. When more electrons hit the focal spot on the anode
more x-rays produced
cathode
short scale of contrast
heel effect
35. NYSVMS Facility Accreditation Standards
grid cutoff
NYS Public Health Law #225
kVp
back scatter
36. What type of bone tumors started elsewhere and spread to the location it was found
true
large crystals - small crystals
x-rays
secondary
37. X-ray gloves have to have....of lead equivalent
inversely proportional
narrow latitude film
0.5mm
whiter
38. What is the term for the spotty appearance on the film due to the large crystals in the screens
black
grid cutoff
quantum mottle
increase scatter
39. Grid helps reduce the amount of......
5
scatter radiation
nucleus pulposis
long scale of contrast
40. If the grid is stationary - more lines that are finer are less apt to show up on a radiograph - this is called....
inversely proportional
rapidly dividing
joint mouse
lines per centimeter
41. What type of film has no screens or film cassettes
grid efficiency
non-screen
white
stationary and rotating
42. A...is a series of lead strips on edge which only allow the primary x-rays - which are traveling in straight lines - reach the film
intensifying screens
AgBr
grid
aluminum
43. What is one of the most common area of occurance for spinal problems (15% dobermans)
line focus principle
cervical
milliamperage
no contrast
44. Extra pain is also called
phosphor type
intensifying screens
hyperesthesia
rapidly dividing
45. The effective focal spot is approximately 1/3 the size of the actual focal spot
grid
peak kilovoltage
mAs
true
46. If barium leaks into the abdomen or lungs - it can cause what
cathode
iodine
3cc/#
inflammation an granuloma
47. Is the source of electrons
15% rule for kVp
true
cathode
radiographic detail
48. Rotating anode
decrease scatter radiation
10
fogging
anode
49. The layer of the film where the action occurs
rotating anode
kVp
AgBr
dosimeter
50. In the dark room - the safe light (red light) needs to be at least how far away from the loading bench
phosphor layer
grid cutoff
4 ft
white