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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. In which processing solution do unionized (green) AgBr crystals get removed from the film
dosimeter
screens (phosphor layer)
FFD
fixer
2. We should always try and stay How many feet from our x-ray machine
white
latent image
6 ft
2
3. Is on the anode and is angled at approximately 20 degrees from vertical
focal spot
5
film cassette
fogging
4. Distance from the grid to the x-ray tube (36-40 inches)
grid cutoff
whiter
rapidly dividing
grid focus
5. With the heel effect - more x-rays tend to be in the beam toward this end of the tube
anode
cathode filament
10 cm
cathode
6. Faster screens/less detail; slower screens/more detail
cathode
heel effect
large crystals - small crystals
grid cutoff
7. Why do we not give atropine with a contrast radiograph
5
black
stops peristalsis
grid cutoff
8. Is the most common artifact in radiography
non-screen
fluoroscopy
movement
paresis
9. MAs for abdomen (standard mAs) x=?
adjustable lead shutters
5
annulus fibrosis
focused and unfocused or parallel
10. We ideally take a radiograph of the abdomen at the peak of inspiration
fixer
true
true
false
11. Incorrect grid focus is one reason for
2
grey
dosimeter
grid cutoff
12. A living animal - with tissue densities such as fat - muscle - fluid - and air
white
arthritis
idiopathic
long scale of contrast
13. An invisible image on the x-ray film Which becomes visible after it has been processed in the manual or automatic processor
unexposed AgBr
focal spot
fluoroscopy
latent image
14. What must have little or no 'afterglow'
kVp
wide latitude film
somatic damage
screens (phosphor layer)
15. Tilting of the tube or grid is one reason for
false
genetic damage
false
grid cutoff
16. X-ray gloves have to have....of lead equivalent
secondary
0.5mm
intensifying screens
supercoat
17. Growth - gonadal - neoplastic - and metabolically active cells are what kind of cells
rapidly dividing
annulus fibrosis
speed
fast
18. This gives you the desired mAs - and it gives less time for your patient to move
alopecia
phosphor layer
highest mA and smallest time fraction
black
19. Is the electrical current that heats the filament
joint mouse
increase density
mAs
milliamperage
20. If the thorax is greater than or equal to....you should use a grid
pneumocystogram
focal spot
15 cm
stops peristalsis
21. Is the source of electrons
focal spot
anode
4 ft
cathode
22. In the dark room - the safe light (red light) needs to be at least how far away from the loading bench
short scale of contrast
4 ft
indirect relationship
2
23. Ideally is very small
focal spot
genetic damage
grid cutoff
contrast
24. What type of bone tumors started elsewhere and spread to the location it was found
secondary
anode
nucleus pulposis
highest mA and smallest time fraction
25. For bladder cystography - we use what contrast material instead of barium
hypaque
focal spot
black
lead cone and adjustable lead shutters
26. Is responsible for the number or quantity of x-rays
focal spot
mAs
increase density
annulus fibrosis
27. DJD is also called
arthritis
grid cutoff
grey
no contrast
28. Extra vertebrae - scoliosis - fused vertebrae are all examples of
first trimester
true
abnormalities
thoracic(caudal) and lumbar
29. The picture formed after the film has been exposed to x-rays and then processed into a visible image.
NYS Public Health Law #225
short scale of contrast
radiograph
genetic and somatic
30. What is the term for a negative contrast cystogram where we inject air
focal spot
10 cm
pneumocystogram
Maximum Permissible Dose
31. This number in santes' rule refers to the distance the x-ray tube is from the x-ray film
latent image
rapidly dividing
40
light source
32. What is the name for the cartilage flap in the shoulder joint that has broken free and is floating around in the joint fluid
large crystals - small crystals
rotating anode
true
joint mouse
33. What type of bone tumors started in the location they were first found
reflective layer
unexposed AgBr
primary
2
34. The exact area of the anode that the electrons hit
screen film
paralysis
focal spot
silver halide
35. If there's far or muscle in the way of an x-ray - those parts would be
cathode
rapidly dividing
supercoat
grey
36. What type of film has the x-rays directly cause the latent image to be formed
grid cutoff
non-screen
adjustable lead shutters
white and black are reversed
37. The effective focal spot is approximately 1/3 the size of the actual focal spot
peak kilovoltage
secondary
true
idiopathic
38. Extra pain is also called
whiter
contrast
hyperesthesia
stationary anode
39. 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
osteomyelitis
electrons
white
heel effect
40. Gelatinous center of disk - pinches spinal cord to cause herniated disk
nucleus pulposis
0.5mm
increase density
focal film distance
41. The mAs has to do with the power of the x-rays produced
cathode
false
mAs
dosimeter
42. If the kVp is too low
grid cutoff
stationary and rotating
unexposed AgBr
no contrast
43. A device that moves the grid back and forth under the table. it helps to prevent grid lines from showing
grid cutoff
fogging
cathode
potter-bucky diagram
44. If the grid is stationary - more lines that are finer are less apt to show up on a radiograph - this is called....
lines per centimeter
osteomyelitis
true
true
45. Areas on film that should be black but come out grey - due to storage
stops peristalsis
14 x 17
x-rays
fogging
46. Is to the right - it produces the electrons
cathode
5
hyperesthesia
screens (phosphor layer)
47. MAs for extremities
false
back scatter
5
phosphor layer
48. The greater the number of electrons released
supercoat
the higher the mA
FFD
latent image
49. There are......intensifying screens within a cassette
arthritis
calcium tungstate
increase density
2
50. Screens are classified according to
screens (phosphor layer)
peak kilovoltage
cervical
speed