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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 electrical current that heats the filament
no contrast
decrease scatter radiation
milliamperage
more light
2. NYSVMS Facility Accreditation Standards
primary
alopecia
NYS Public Health Law #225
cathode
3. What needs to have high levels of x-ray absorbtion
screens (phosphor layer)
double contrast
non-screen
grey
4. Is the density difference between 2 adjacent areas on a radiograph
santes' rule
anode
contrast
false
5. Aluminum filter
decrease scatter radiation
afterglow
focal spot
grey
6. Size film we use here
higher mA
15% rule for kVp
x-rays
14 x 17
7. The shorter the wavelength of the x-ray - the more powerful the x-ray is
anode
true
iodine
osteomyelitis
8. What is the name for the cartilage flap in the shoulder joint that has broken free and is floating around in the joint fluid
4 ft
2
increase density
joint mouse
9. 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
3cc/#
rapidly dividing
rotating anode
nucleus pulposis
10. The electrical current sent through the filament to cause this electron release is called
grid
santes' rule
milliamperage
more x-rays produced
11. Affects both density and contrast
kVp
paralysis
decrease scatter radiation
cathode and anode
12. A type of electromagnetic radiation which have a shorter wavelength than visible light
more x-rays produced
x-rays
increase density
film cassette
13. Types of cell damage
cathode
genetic and somatic
rapidly dividing
silver halide
14. Is only 1/3 the size of the actual focal spot
radiographic detail
0.25mm
x-rays
effective focal spot
15. If perforation is suspected - what compound do we use when radiographing
adjustable lead shutters
true
iodine
genetic and somatic
16. Rotating anode
direct relationship
rapidly dividing
fluoroscopy
decrease scatter radiation
17. The distance from the x-ray tube to the x-ray machine is the SID (source image distance) - or the FFD (also known as....)
white and black are reversed
4 ft
focal film distance
10
18. The back of the cassette is made of lead to decrease....
grey
screens (phosphor layer)
no contrast
back scatter
19. Increase developing time and temp of developing fluid
focal spot
cathode
kVp
increase density
20. Gelatinous center of disk - pinches spinal cord to cause herniated disk
lines per centimeter
density
nucleus pulposis
scatter radiation
21. Distance from the grid to the x-ray tube (36-40 inches)
fixer
no contrast
milliamperage
grid focus
22. The exact area of the anode that the electrons hit
x-rays
grid
focal spot
long scale of contrast
23. What type of cystogram uses air and hypaque
short scale of contrast
x-rays
double contrast
screens (phosphor layer)
24. With the heel effect - more x-rays tend to be in the beam toward this end of the tube
lead cone and adjustable lead shutters
15
cathode
4 ft
25. Bone infection - also known as spondylitis
osteomyelitis
latent image
quantum mottle
unexposed AgBr
26. When a body part is greater than or equal to.....you should use a grid
intussusception
clinical signs
no contrast
10 cm
27. Is the device which restricts (narrows) the beam of x-rays as they leave the x-ray machine
quantum mottle
genetic damage
higher mA
collimator
28. The tendency of a luminescent compound to continue to give off light after x-radiation has stopped
afterglow
screen film
rare earth elements
density
29. When the AgBr reacts and ionizes with light or x-rays - than at this point - What is on the film is known as the
false
4 ft
rotating anode
latent image
30. In the dark room - the safe light (red light) needs to be at least how far away from the loading bench
heel effect
milliamperage
4 ft
heel effect
31. On a lateral view of the chest the aorta is dorsal to the caudal vena cava
inversely proportional
whiter
screen film
true
32. If the kVp is too low
false
no contrast
rapidly dividing
light source
33. For bladder cystography - we use what contrast material instead of barium
rotating anode
reflective layer
adjustable lead shutters
hypaque
34. If the thorax is greater than or equal to....you should use a grid
15 cm
kVp or mAs
10 cm
the higher the mA
35. Body cells affected - damage seen during lifetime of creature - can be immediate or cummulative
somatic damage
collimator
scatter radiation
cathode
36. Is responsible for the number or quantity of x-rays
aluminum
somatic damage
15
mAs
37. Radiographic signs dont always agree with what
clinical signs
x-rays
the higher the mA
pneumocystogram
38. Film that is more sensitive to ionizing radiation than to fluorescent light
non-screen film
aluminum
higher mA
intensifying screens
39. If the kVp is increased by 15% - the density is doubled
SOP
15% rule for kVp
focal spot
higher mA
40. Monitors personal exposure to radiation
genetic and somatic
dosimeter
focal spot
radiographic detail
41. There are......intensifying screens within a cassette
the sharper the radiograph
2
phosphor type
osteomyelitis
42. Collimator
screen film
medium film
decrease scatter radiation
false
43. Within the collimator outlines just how much is collimated
light source
grid focus
supercoat
grey
44. DJD is also called
arthritis
scatter radiation
phosphor layer dyes
milliamperage
45. What is the term for an unknown cause
lens
idiopathic
large crystals - small crystals
mAs
46. They don't move - they're found in dental units and portable units - cannot withstand the heat produced from large units
potter-bucky diagram
alopecia
stationary anode
calcium tungstate
47. If the kVp is too high
mAs
phosphor layer
increase scatter
grid focus
48. As this increases - the intensity of the x-ray beam decreases - so the beam intensity increases - and the mAs must decrease to compensate
diskospondylitis
phosphor layer dyes
FFD
cathode
49. Grid helps reduce the amount of......
scatter radiation
medium or par
joint mouse
AgBr
50. White against black - like the x-ray of a plain skeleton
abnormalities
aluminum
short scale of contrast
milliamperage