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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. Pigments tend to decrease the lateral spread of light so there is increased detail
phosphor layer dyes
grid cutoff
more x-rays produced
screens (phosphor layer)
2. Affects both density and contrast
stops peristalsis
heel effect
kVp
phosphor layer dyes
3. Aluminum filter
abnormalities
true
false
decrease scatter radiation
4. Crystals + x-rays = ?
0.25mm
arthritis
heel effect
visible light
5. General purpose film - forgiving
fast film
wide latitude film
highest mA and smallest time fraction
focal film distance
6. Ideally is very small
false
speed
idiopathic
focal spot
7. Faster screens/less detail; slower screens/more detail
thoracic(caudal) and lumbar
high contrast
large crystals - small crystals
true
8. Is determined by the ratio of the height of the lead strips to the distance between them
grid efficiency
visible light
2.5
false
9. With the heel effect - more x-rays tend to be in the beam toward this end of the tube
wobblers syndrome
1/30
cathode
grid cutoff
10. Negative contrast agents appear what color on a radiograph
black
inflammation an granuloma
true
hypaque
11. Give a 25% barium solution for upper GI series - and give At what dose?
3cc/#
false
double contrast
FFD
12. The effective focal spot is approximately 1/3 the size of the actual focal spot
true
black
stationary and rotating
anode
13. Must change if the FFD changes
1/30
mAs
cathode
non-screen
14. White against black - like the x-ray of a plain skeleton
speed
short scale of contrast
inverse square law
4 ft
15. This is used to take 'real-time' radiographs - used a lot in horses
screens (phosphor layer)
fluoroscopy
10 cm
contrast
16. What is one of the most common area of occurance for spinal problems (15% dobermans)
screen film
cervical
phosphor layer
slow
17. What is the term for an unknown cause
sensitive cells
idiopathic
caudal border of scapula
rotating anode
18. Lead equivalent for apron
0.25mm
first trimester
more x-rays produced
wide latitude film
19. 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
heel effect
electrons
fluoroscopy
grey
20. 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)
true
heel effect
calcium tungstate
adjustable lead shutters
21. What needs to have high levels of x-ray absorbtion
anode
screens (phosphor layer)
focal spot
speed
22. Another result of the 20 degree angling
fast
phosphor type
heel effect
SOP
23. Cassettes can be made of.....Which is the type here - or they can be made of magnesium - vinyl - etc
aluminum
calcium tungstate
cathode
primary
24. NYSVMS Facility Accreditation Standards
false
scatter radiation
the higher the mA
NYS Public Health Law #225
25. Has a filament made of tungsten - due to the high melting point
cathode and anode
unexposed AgBr
grey
line focus principle
26. Weakness
paresis
increase density
quantum mottle
scatter radiation
27. A grid must be used on the chest if it's 11cm thick
false
0.25mm
quantum mottle
back scatter
28. These cells are the most sensitive to radiation
false
rapidly dividing
movement
white and black are reversed
29. MAs for chest 1/2x =?
cathode
x-rays
density
2.5
30. Growth - gonadal - neoplastic - and metabolically active cells are what kind of cells
rapidly dividing
no contrast
false
fixer
31. Is the electrical current that heats the filament
milliamperage
contrast
AgBr
density
32. If the thorax is greater than or equal to....you should use a grid
15 cm
screens (phosphor layer)
fluoroscopy
0.5mm
33. What is the term for a negative contrast cystogram where we inject air
primary
increase scatter
pneumocystogram
collimator
34. We are supposed to use a grid if the abdomen is greater than or equal to......
first trimester
10 cm
whiter
fogging
35. Is the measurement for the maximum energy available at that setting
non-screen film
15
pneumocystogram
peak kilovoltage
36. The effective focal spot is only 1/3 the size of the actual focal spot. this is called the
kVp or mAs
milliamperage
true
line focus principle
37. What are the 2 types of anodes
stationary and rotating
cathode
quantum mottle
3cc/#
38. Tilting of the tube or grid is one reason for
kVp
NYS Public Health Law #225
grid cutoff
lead cone and adjustable lead shutters
39. If the x-ray tube is not 36-40 inches from the grid - this is called the
metallic silver
grid cutoff
grey
15% rule for kVp
40. Amount of radiation a person can recieve in a calendar year
rapidly dividing
non-screen
Maximum Permissible Dose
back scatter
41. What is the name for the cartilage flap in the shoulder joint that has broken free and is floating around in the joint fluid
fast
double mAs
joint mouse
intensifying screens
42. Are produced when electrons are slowed down or stopped by atoms in the target area where they are aimed
10 cm
non-screen
x-rays
fluoroscopy
43. Rotating anode
decrease scatter radiation
narrow latitude film
film cassette
false
44. MAs for ANY part - when using a grid 3x= ?
metallic silver
15
true
focused and unfocused or parallel
45. To double the density
x-rays
double mAs
no contrast
pneumocystogram
46. Redness of the skin
screen film
paralysis
contrast
erythema
47. Body cells affected - damage seen during lifetime of creature - can be immediate or cummulative
white
6 ft
diskospondylitis
somatic damage
48. Is only 1/3 the size of the actual focal spot
more x-rays produced
x-rays
effective focal spot
inverse square law
49. Animal has broken femur - it's ideal to have How many radiographs for diagnostic purposes
movement
2
focused and unfocused or parallel
0.25mm
50. If there's metal in the way of an x-ray - than no x-rays will get through and that part would be
Maximum Permissible Dose
annulus fibrosis
white
2.5