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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. With the heel effect - more x-rays tend to be produced toward the cathode end
sensitive cells
cathode
true
medium film
2. Is responsible for the number or quantity of x-rays
higher mA
pneumocystogram
mAs
cathode
3. We ideally take a radiograph of the abdomen at the peak of inspiration
AgBr
rapidly dividing
cathode
false
4. The back of the cassette is made of lead to decrease....
genetic and somatic
inversely proportional
back scatter
kVp
5. Must increase.....to compensate for x-ray absorption by the grid. (we triple our mAs)
kVp
effective focal spot
5
kVp or mAs
6. The distance from the x-ray tube to the x-ray machine is the SID (source image distance) - or the FFD (also known as....)
screens (phosphor layer)
slow
focal film distance
grid focus
7. A lightproof encasement designed to hold x-ray film and intensifying screens in close contact
long scale of contrast
paresis
15 cm
cassette
8. An abdominal radiograph should be taken at the peak of expiration
4 ft
unexposed AgBr
true
x-rays
9. Dislocations or separations
luxations
whiter
reflective layer
inversely proportional
10. What type of cystogram uses air and hypaque
back scatter
double contrast
wobblers syndrome
screen film
11. Lead equivalent for thyroid sheild
decrease scatter radiation
0.5mm
double mAs
cervical
12. MAs for abdomen (standard mAs) x=?
more light
idiopathic
direct relationship
5
13. Why do we not give atropine with a contrast radiograph
true
stops peristalsis
false
lead cone and adjustable lead shutters
14. Amount of radiation a person can recieve in a calendar year
mAs
Maximum Permissible Dose
cathode and anode
intensifying screens
15. Grid helps reduce the amount of......
scatter radiation
wobblers syndrome
increase density
milliamperage
16. What is the difference between fluoroscopy and a regular radiograph
radiograph
white and black are reversed
scatter radiation
false
17. To utilize this - you position the thickest part of the animal towards the cathode end of the x-ray tube
double contrast
thoracic(caudal) and lumbar
heel effect
abnormalities
18. If you use an mA of 300 - What time fraction must i use to get an mAs of 10?
medium or par
cervical
1/30
abnormalities
19. There are......intensifying screens within a cassette
cathode
true
2
cathode
20. When doing a lateral radiograph of the thorax/chest - the x-ray beam should be centered over what specific anatomical landmark
x-rays
caudal border of scapula
joint mouse
calcium tungstate
21. Increase developing time and temp of developing fluid
10 cm
medium film
calcium tungstate
increase density
22. When this is exposed to x-rays - it will absorb photons (quanta) and give off photons of visible light which the film is sensitive to (give off blue light)
potter-bucky diagram
calcium tungstate
screen film
arthritis
23. What gives off 4 times the amount of light photons than does the calcium tungstate (it gives off green light)
rare earth elements
film cassette
more x-rays produced
arthritis
24. The mAs has to do with the power of the x-rays produced
false
fluoroscopy
grid focus
high contrast
25. 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
metallic silver
x-rays
electrons
rapidly dividing
26. This stage of pregnancy is the most dangerous for the fetus
diskospondylitis
lead cone and adjustable lead shutters
cathode
first trimester
27. AgBr + x-rays =
caudal border of scapula
decrease scatter radiation
medium film
non-screen film
28. What spinal problem do doberman's get
collimator
wobblers syndrome
false
double contrast
29. Outer layer of disk ( dries out and cracks and causes disk to herniate)
false
line focus principle
annulus fibrosis
double contrast
30. Is the electrical current that heats the filament
nucleus pulposis
milliamperage
rare earth elements
inflammation an granuloma
31. Growth - gonadal - neoplastic - and metabolically active cells are what kind of cells
indirect relationship
non-screen
FFD
rapidly dividing
32. Slowly growing dividing cells are the most sensitive to the effects of ionizing radiaton
rapidly dividing
more x-rays produced
false
afterglow
33. What is the name for the cartilage flap in the shoulder joint that has broken free and is floating around in the joint fluid
latent image
higher mA
paralysis
joint mouse
34. Within the collimator outlines just how much is collimated
light source
increase density
screen film
true
35. Cassettes can be made of.....Which is the type here - or they can be made of magnesium - vinyl - etc
quantum mottle
density
anode
aluminum
36. The effective focal spot is approximately 1/3 the size of the actual focal spot
non-screen film
high contrast
increase density
true
37. Negative contrast agents appear what color on a radiograph
heel effect
caudal border of scapula
silver halide
black
38. Bone infection - also known as spondylitis
screens (phosphor layer)
osteomyelitis
increase density
whiter
39. Between density and kVp
movement
cathode and anode
electrons
indirect relationship
40. The x-ray machine we've been using has a rotating anode
slow film
focal spot
decrease scatter radiation
true
41. If there's bone in the way of an x-ray -. those parts would be
false
reflective layer
focused and unfocused or parallel
whiter
42. Can cause damage to living cells through the process of excitation or ionization of electrons in the orbits around atoms
potter-bucky diagram
x-rays
focal spot
anode
43. We are supposed to use a grid if the abdomen is greater than or equal to......
secondary
focal spot
10 cm
contrast
44. Types of cell damage
first trimester
genetic and somatic
Maximum Permissible Dose
unexposed AgBr
45. This gives you the desired mAs - and it gives less time for your patient to move
potter-bucky diagram
highest mA and smallest time fraction
primary
latent image
46. The layer of the film where the action occurs
line focus principle
10 cm
AgBr
latent image
47. DJD is also called
arthritis
screen film
back scatter
0.5mm
48. Is to the right - it produces the electrons
cathode
spondylosis
milliamperage
unexposed AgBr
49. The tendency of a luminescent compound to continue to give off light after x-radiation has stopped
line focus principle
latent image
short scale of contrast
afterglow
50. Has a negative charge
focal spot
true
grid efficiency
cathode