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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 source of electrons
lines per centimeter
rapidly dividing
cathode
non-screen
2. Radiograph of a dogs skeleton has a long scale of contrast
movement
false
inflammation an granuloma
somatic damage
3. Redness of the skin
highest mA and smallest time fraction
grid efficiency
erythema
back scatter
4. Lead equivalent for thyroid sheild
decrease scatter radiation
0.5mm
phosphor layer dyes
radiograph
5. Animal has broken femur - it's ideal to have How many radiographs for diagnostic purposes
true
non-screen
somatic damage
2
6. A lightproof encasement designed to hold x-ray film and intensifying screens in close contact
film cassette
cassette
10 cm
wide latitude film
7. The mAs has to do with the power of the x-rays produced
false
visible light
grid focus
abnormalities
8. On a lateral view of the chest the aorta is dorsal to the caudal vena cava
increase scatter
true
density
effective focal spot
9. The efficiency of this reflects light made by phosphors back towards the film
reflective layer
15
increase density
effective focal spot
10. A grid must be used on the chest if it's 11cm thick
mAs
white and black are reversed
short scale of contrast
false
11. If you use an mA of 300 - What time fraction must i use to get an mAs of 10?
supercoat
cathode filament
medium film
1/30
12. Screens are classified according to
long scale of contrast
speed
14 x 17
lens
13. When more electrons hit the focal spot on the anode
pneumocystogram
grid efficiency
more x-rays produced
double contrast
14. Has a negative charge
cathode
more x-rays produced
wide latitude film
first trimester
15. A device that moves the grid back and forth under the table. it helps to prevent grid lines from showing
non-screen
2
alopecia
potter-bucky diagram
16. This is inversely proportional to screen speed
more light
short scale of contrast
reflective layer
radiographic detail
17. Tilting of the tube or grid is one reason for
2.5
film cassette
grid cutoff
lines per centimeter
18. Infection of a disk - or bone near it
fluoroscopy
diskospondylitis
non-screen film
milliamperage
19. Give a 25% barium solution for upper GI series - and give At what dose?
milliamperage
line focus principle
cervical
3cc/#
20. The x-ray machine we've been using has a rotating anode
kVp or mAs
true
the sharper the radiograph
whiter
21. Between density and mAs
screen film
intensifying screens
false
direct relationship
22. The greater the number of electrons released
the higher the mA
slow film
x-rays
rotating anode
23. If there's metal in the way of an x-ray - than no x-rays will get through and that part would be
kVp
radiograph
slow
white
24. Monitors personal exposure to radiation
false
speed
genetic and somatic
dosimeter
25. When doing a lateral radiograph of the thorax/chest - the x-ray beam should be centered over what specific anatomical landmark
caudal border of scapula
santes' rule
more light
kVp or mAs
26. 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
rotating anode
AgBr
dosimeter
milliamperage
27. MAs for ANY part - when using a grid 3x= ?
grid cutoff
15
inflammation an granuloma
radiograph
28. AgBr + light =
kVp
potter-bucky diagram
screen film
narrow latitude film
29. White against black - like the x-ray of a plain skeleton
medium film
kVp
short scale of contrast
caudal border of scapula
30. DJD is also called
luxations
increase scatter
density
arthritis
31. Increased crystal size.....
the higher the mA
true
higher mA
more light
32. X-ray gloves have to have....of lead equivalent
false
slow
0.5mm
more x-rays produced
33. Film with: high detail - minimal graininess - increased exposure
true
fluoroscopy
slow film
false
34. Safe Operating Procedures
reflective layer
SOP
fixer
lines per centimeter
35. Must be radiolucent
unexposed AgBr
aluminum
film cassette
secondary
36. MAs for bone views (pelvis - skull - spine) 2x =?
1/30
10
supercoat
grid focus
37. Cassettes can be made of.....Which is the type here - or they can be made of magnesium - vinyl - etc
double mAs
2.5
aluminum
movement
38. Film with silver crystals that is more sensitive to fluorescent light emitted from intensifying screens than to ionizing radiation
cathode
focal film distance
joint mouse
screen film
39. Collimator
grey
stationary and rotating
decrease scatter radiation
anode
40. Rotating anode
joint mouse
false
fluoroscopy
decrease scatter radiation
41. Extra vertebrae - scoliosis - fused vertebrae are all examples of
2.5
reflective layer
abnormalities
highest mA and smallest time fraction
42. Loss of movement in legs (front and/or back)
paralysis
screens (phosphor layer)
cassette
narrow latitude film
43. To double the density
double mAs
false
x-rays
cathode
44. If the kVp is increased by 15% - the density is doubled
electrons
15% rule for kVp
grid cutoff
hyperesthesia
45. Size film we use here
silver halide
anode
14 x 17
true
46. Ideally is very small
calcium tungstate
focal spot
increase scatter
true
47. Weakness
focal spot
non-screen
paresis
0.5mm
48. Means more electrons will be released from the filament and directed at the anode
grid cutoff
focal spot
white
higher mA
49. AgBr + x-rays =
long scale of contrast
fast film
non-screen film
osteomyelitis
50. Body cells affected - damage seen during lifetime of creature - can be immediate or cummulative
whiter
grid
somatic damage
heel effect