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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. Hairloss or baldness
5
alopecia
white
screens (phosphor layer)
2. Ideally is very small
focal spot
back scatter
FFD
kVp
3. Body cells affected - damage seen during lifetime of creature - can be immediate or cummulative
somatic damage
wobblers syndrome
film cassette
false
4. Loss of movement in legs (front and/or back)
nucleus pulposis
paralysis
decrease scatter radiation
unexposed AgBr
5. Is to the right - it produces the electrons
focal film distance
6 ft
cathode
inflammation an granuloma
6. What is the term for the spotty appearance on the film due to the large crystals in the screens
quantum mottle
spondylosis
phosphor type
genetic and somatic
7. The x-ray machine we've been using has a rotating anode
true
stationary and rotating
white and black are reversed
decrease scatter radiation
8. When doing a lateral radiograph of the thorax/chest - the x-ray beam should be centered over what specific anatomical landmark
grey
caudal border of scapula
2
hypaque
9. Is the measurement for the maximum energy available at that setting
screen film
peak kilovoltage
medium or par
rotating anode
10. 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
false
phosphor type
scatter radiation
11. Is the source of electrons
thoracic(caudal) and lumbar
6 ft
fogging
cathode
12. The tendency of a luminescent compound to continue to give off light after x-radiation has stopped
grid cutoff
afterglow
0.5mm
fogging
13. This pertains to the size of the electron cloud and thus directly to the number of x-ray produced
fast
mAs
speed
long scale of contrast
14. Outer layer of disk ( dries out and cracks and causes disk to herniate)
high contrast
annulus fibrosis
anode
no contrast
15. Another result of the 20 degree angling
supercoat
white and black are reversed
focused and unfocused or parallel
heel effect
16. A clear protective layer on radiographic film
spondylosis
mAs
x-rays
supercoat
17. The back of the cassette is made of lead to decrease....
back scatter
adjustable lead shutters
false
screen film
18. If there's far or muscle in the way of an x-ray - those parts would be
grid cutoff
long scale of contrast
grey
nucleus pulposis
19. Amount of radiation a person can recieve in a calendar year
Maximum Permissible Dose
screens (phosphor layer)
rapidly dividing
silver halide
20. If you use an mA of 300 - What time fraction must i use to get an mAs of 10?
false
latent image
14 x 17
1/30
21. If barium leaks into the abdomen or lungs - it can cause what
inflammation an granuloma
idiopathic
x-rays
kVp
22. What needs to have high levels of x-ray to light conversion with the correct energy and color for the type of film used
focal film distance
40
non-screen
screens (phosphor layer)
23. In the dark room - the safe light (red light) needs to be at least how far away from the loading bench
4 ft
non-screen
back scatter
fluoroscopy
24. AgBr + x-rays =
screens (phosphor layer)
hyperesthesia
cathode
non-screen film
25. They don't move - they're found in dental units and portable units - cannot withstand the heat produced from large units
white
nucleus pulposis
stationary anode
caudal border of scapula
26. If the thorax is greater than or equal to....you should use a grid
calcium tungstate
santes' rule
screen film
15 cm
27. This gives you the desired mAs - and it gives less time for your patient to move
10 cm
true
milliamperage
highest mA and smallest time fraction
28. Is on the anode and is angled at approximately 20 degrees from vertical
focal spot
aluminum
grid cutoff
white
29. Legally - a non-pregnant woman is required to hold a HBC dog for radiographs in NYS
caudal border of scapula
false
first trimester
visible light
30. If there's metal in the way of an x-ray - than no x-rays will get through and that part would be
somatic damage
white
4 ft
fast film
31. Film with silver crystals that is more sensitive to fluorescent light emitted from intensifying screens than to ionizing radiation
decrease scatter radiation
screen film
collimator
fluoroscopy
32. Increase mAs and kVp in order to...
increase density
5
electrons
slow film
33. MAs for ANY part - when using a grid 3x= ?
anode
whiter
15
cathode and anode
34. On a lateral view of the chest the aorta is dorsal to the caudal vena cava
true
inverse square law
mAs
phosphor type
35. NYSVMS Facility Accreditation Standards
cathode
white and black are reversed
NYS Public Health Law #225
cervical
36. Between density and kVp
indirect relationship
non-screen
density
milliamperage
37. Most commonly used film - compromise between graininess and speed (detail)
lead cone and adjustable lead shutters
medium film
focal spot
alopecia
38. A type of electromagnetic radiation which have a shorter wavelength than visible light
AgBr
x-rays
true
mAs
39. Redness of the skin
thoracic(caudal) and lumbar
erythema
lead cone and adjustable lead shutters
focal spot
40. Crystals + x-rays = ?
cathode filament
true
x-rays
visible light
41. What is the term for when the animal's bowel engulfs a piece of bowel distal to it - causing blockage
visible light
short scale of contrast
intussusception
grid cutoff
42. The mAs has to do with the power of the x-rays produced
medium or par
no contrast
false
fogging
43. The efficiency of this reflects light made by phosphors back towards the film
0.5mm
cathode
reflective layer
15% rule for kVp
44. General purpose film - forgiving
phosphor layer dyes
2
short scale of contrast
wide latitude film
45. Refers to the 'blackness' of a radiograph
density
fixer
non-screen film
radiographic detail
46. AgBr + light =
wobblers syndrome
screen film
focal film distance
slow film
47. For bladder cystography - we use what contrast material instead of barium
heel effect
increase density
white and black are reversed
hypaque
48. Distance from the grid to the x-ray tube (36-40 inches)
focal spot
decrease scatter radiation
caudal border of scapula
grid focus
49. The distance from the x-ray tube to the x-ray machine is the SID (source image distance) - or the FFD (also known as....)
false
focal film distance
clinical signs
cervical
50. When the density difference is great - there is
rapidly dividing
peak kilovoltage
higher mA
high contrast