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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 to the left - electrons bounce off it at a 20 degree angle
potter-bucky diagram
wobblers syndrome
anode
osteomyelitis
2. The shorter the wavelength of the x-ray - the more powerful the x-ray is
true
3cc/#
focal spot
slow film
3. NYSVMS Facility Accreditation Standards
thoracic(caudal) and lumbar
NYS Public Health Law #225
sensitive cells
grid cutoff
4. What type of bone tumors started in the location they were first found
high contrast
aluminum
primary
thoracic(caudal) and lumbar
5. The effective focal spot is only 1/3 the size of the actual focal spot. this is called the
line focus principle
0.5mm
milliamperage
true
6. The smaller the focal spot
abnormalities
scatter radiation
double mAs
the sharper the radiograph
7. A layer of intensifying screen that reflects the light from the phosphor layer toward the film
reflective layer
indirect relationship
decrease scatter radiation
paralysis
8. This gives you the desired mAs - and it gives less time for your patient to move
hypaque
hyperesthesia
light source
highest mA and smallest time fraction
9. The focused grid is upside down - is one reason for
focused and unfocused or parallel
grid cutoff
adjustable lead shutters
5
10. What needs to have high levels of x-ray to light conversion with the correct energy and color for the type of film used
screens (phosphor layer)
true
screen film
true
11. What type of cystogram uses air and hypaque
anode
grid
double contrast
screens (phosphor layer)
12. Positive contrast agents appear what color on a radiograph
density
black
white
screens (phosphor layer)
13. Pigments tend to decrease the lateral spread of light so there is increased detail
increase scatter
phosphor layer dyes
cathode
cathode filament
14. The back of the cassette is made of lead to decrease....
grey
intensifying screens
non-screen
back scatter
15. Bone - lymphatic cells - epitheilial - and hemopoietic cells are also what kind of cell?
kVp
focused and unfocused or parallel
anode
sensitive cells
16. Is to the right - it produces the electrons
more x-rays produced
scatter radiation
milliamperage
cathode
17. Redness of the skin
erythema
grid cutoff
anode
non-screen
18. Calcium tungstate - rare earth elements
phosphor type
false
the sharper the radiograph
intussusception
19. Types of cell damage
density
genetic and somatic
decrease scatter radiation
double contrast
20. Longer wavelengths of electromagnetic radiation have more penetrating power
secondary
double mAs
milliamperage
false
21. These cells are the most sensitive to radiation
metallic silver
mAs
rapidly dividing
10 cm
22. Screen speed is.....to the exposure required to cause it to flouresce
line focus principle
inversely proportional
light source
cathode
23. MAs for extremities
calcium tungstate
5
movement
kVp or mAs
24. The exact area of the anode that the electrons hit
grid cutoff
focal spot
mAs
false
25. These crystals will turn white/clear when processing film
cathode
cervical
collimator
unexposed AgBr
26. An abdominal radiograph should be taken at the peak of expiration
inverse square law
medium film
true
genetic and somatic
27. Negative contrast agents appear what color on a radiograph
black
kVp
the higher the mA
focused and unfocused or parallel
28. Dislocations or separations
white and black are reversed
grid cutoff
luxations
14 x 17
29. What is the name for the cartilage flap in the shoulder joint that has broken free and is floating around in the joint fluid
decrease scatter radiation
direct relationship
joint mouse
rare earth elements
30. These screens have increased definition/detail - need to have increased radiation exposure
x-rays
radiographic detail
slow
nucleus pulposis
31. There are......intensifying screens within a cassette
non-screen
2
reflective layer
narrow latitude film
32. What is one of the most common areas of occurance for spinal problems ( 85% dachshunds)
thoracic(caudal) and lumbar
intensifying screens
first trimester
dosimeter
33. The 2 types of collimators are
lead cone and adjustable lead shutters
2
dosimeter
indirect relationship
34. Refers to the 'blackness' of a radiograph
6 ft
density
latent image
kVp
35. A clear protective layer on radiographic film
double mAs
milliamperage
x-rays
supercoat
36. KVp=(2x thickness of body part in cm) + 40
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on line
183
37. MAs for chest 1/2x =?
0.5mm
screen film
increase scatter
2.5
38. This is caused by mutations in gonadal cells - not seen until offspring are produced - mutations are not always bad
white
mAs
genetic damage
heel effect
39. MAs for ANY part - when using a grid 3x= ?
15
no contrast
grid cutoff
milliamperage
40. Crystals + x-rays = ?
kVp
fluoroscopy
visible light
true
41. Why do we not give atropine with a contrast radiograph
stops peristalsis
light source
line focus principle
kVp or mAs
42. A living animal - with tissue densities such as fat - muscle - fluid - and air
grey
long scale of contrast
increase density
medium film
43. What is the term for an unknown cause
latent image
non-screen
idiopathic
movement
44. What needs to have high levels of x-ray absorbtion
large crystals - small crystals
screens (phosphor layer)
collimator
anode
45. Lead equivalent for thyroid sheild
0.5mm
diskospondylitis
radiograph
x-rays
46. If barium leaks into the abdomen or lungs - it can cause what
inflammation an granuloma
adjustable lead shutters
abnormalities
true
47. What type of film has no screens or film cassettes
non-screen
radiographic detail
electrons
large crystals - small crystals
48. Is located in a focusing cup made of molybdenum which has a high melting point and helps to direct the electrons produced toward the cathode
SOP
genetic and somatic
cathode filament
inflammation an granuloma
49. Weakness
phosphor layer dyes
40
paresis
medium or par
50. Affects both density and contrast
kVp
erythema
AgBr
caudal border of scapula