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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. White against black - like the x-ray of a plain skeleton
short scale of contrast
calcium tungstate
true
indirect relationship
2. With the heel effect - more x-rays tend to be in the beam toward this end of the tube
increase density
paralysis
increase scatter
cathode
3. When doing a lateral radiograph of the thorax/chest - the x-ray beam should be centered over what specific anatomical landmark
santes' rule
caudal border of scapula
2.5
0.5mm
4. Has a negative charge
AgBr
10 cm
the sharper the radiograph
cathode
5. Improper centering of grid is one reason for
grey
grid cutoff
true
10 cm
6. MAs for chest 1/2x =?
non-screen film
rare earth elements
cathode
2.5
7. Increase what value to penetrate thick body parts
2.5
grid cutoff
back scatter
kVp
8. Rotating anode
decrease scatter radiation
osteomyelitis
hyperesthesia
stationary anode
9. What specific part of the eye is cloudy with a cataract
the higher the mA
fogging
mAs
lens
10. The x-ray machine we've been using has a rotating anode
kVp
true
6 ft
2.5
11. What type of bone tumors started in the location they were first found
primary
focal spot
sensitive cells
medium or par
12. This is inversely proportional to screen speed
true
screens (phosphor layer)
radiographic detail
stops peristalsis
13. KVp=(2x thickness of body part in cm) + 40
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14. Negative contrast agents appear what color on a radiograph
genetic damage
black
light source
whiter
15. Cassettes can be made of.....Which is the type here - or they can be made of magnesium - vinyl - etc
clinical signs
unexposed AgBr
aluminum
mAs
16. In which processing solution do unionized (green) AgBr crystals get removed from the film
fast
fixer
screen film
movement
17. 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
joint mouse
grid cutoff
false
18. X-ray machines come with a set one - we cannot adjust it
genetic damage
focal spot
osteomyelitis
stationary and rotating
19. Faster screens/less detail; slower screens/more detail
radiographic detail
large crystals - small crystals
decrease scatter radiation
10 cm
20. When the AgBr reacts and ionizes with light or x-rays - than at this point - What is on the film is known as the
stops peristalsis
latent image
the sharper the radiograph
NYS Public Health Law #225
21. Is the device which restricts (narrows) the beam of x-rays as they leave the x-ray machine
kVp
collimator
x-rays
inversely proportional
22. An invisible image on the x-ray film Which becomes visible after it has been processed in the manual or automatic processor
unexposed AgBr
lead cone and adjustable lead shutters
latent image
scatter radiation
23. What type of films need a lot more x-ray exposure and more time to expose them
15 cm
wobblers syndrome
higher mA
non-screen
24. This number in santes' rule refers to the distance the x-ray tube is from the x-ray film
14 x 17
40
hypaque
false
25. Another result of the 20 degree angling
caudal border of scapula
milliamperage
15% rule for kVp
heel effect
26. The type of collimator that we have here
focused and unfocused or parallel
adjustable lead shutters
1/30
metallic silver
27. The 2 types of collimators are
phosphor layer dyes
lead cone and adjustable lead shutters
grid cutoff
double contrast
28. What are the 2 types of anodes
40
highest mA and smallest time fraction
stationary and rotating
intussusception
29. The back of the cassette is made of lead to decrease....
speed
electrons
unexposed AgBr
back scatter
30. As this increases - the intensity of the x-ray beam decreases - so the beam intensity increases - and the mAs must decrease to compensate
effective focal spot
sensitive cells
FFD
lead cone and adjustable lead shutters
31. Why do we not give atropine with a contrast radiograph
focal spot
spondylosis
stops peristalsis
intensifying screens
32. Safe Operating Procedures
direct relationship
double contrast
SOP
slow
33. Is only 1/3 the size of the actual focal spot
clinical signs
increase density
effective focal spot
large crystals - small crystals
34. If the x-ray tube is not 36-40 inches from the grid - this is called the
2
grid cutoff
fluoroscopy
hyperesthesia
35. Collimator
paresis
x-rays
decrease scatter radiation
true
36. NYSVMS Facility Accreditation Standards
NYS Public Health Law #225
intussusception
indirect relationship
clinical signs
37. Film with silver crystals that is more sensitive to fluorescent light emitted from intensifying screens than to ionizing radiation
effective focal spot
rapidly dividing
screens (phosphor layer)
screen film
38. Must increase.....to compensate for x-ray absorption by the grid. (we triple our mAs)
effective focal spot
10
kVp or mAs
visible light
39. Body cells affected - damage seen during lifetime of creature - can be immediate or cummulative
non-screen
somatic damage
screen film
decrease scatter radiation
40. Is the measurement for the maximum energy available at that setting
increase density
grid cutoff
peak kilovoltage
lens
41. A living animal - with tissue densities such as fat - muscle - fluid - and air
true
cervical
FFD
long scale of contrast
42. The shorter the wavelength of the x-ray - the more powerful the x-ray is
grid cutoff
hypaque
true
nucleus pulposis
43. 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
dosimeter
fast
rotating anode
0.5mm
44. Increased thickness of this leads to increased x-ray absorption and increased visible light emission from the crystals
mAs
focal spot
heel effect
phosphor layer
45. Radiographic signs dont always agree with what
clinical signs
mAs
santes' rule
decrease scatter radiation
46. MAs for ANY part - when using a grid 3x= ?
back scatter
iodine
cathode
15
47. If there's metal in the way of an x-ray - than no x-rays will get through and that part would be
lead cone and adjustable lead shutters
white
effective focal spot
joint mouse
48. Has a positive charge
2
fluoroscopy
SOP
anode
49. Ideally is very small
heel effect
15 cm
genetic and somatic
focal spot
50. Slowly growing dividing cells are the most sensitive to the effects of ionizing radiaton
intensifying screens
narrow latitude film
false
black