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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 measurement for the maximum energy available at that setting
mAs
lines per centimeter
narrow latitude film
peak kilovoltage
2. What needs to have high levels of x-ray to light conversion with the correct energy and color for the type of film used
cassette
screens (phosphor layer)
slow
false
3. These screens have increased definition/detail - need to have increased radiation exposure
screen film
slow
non-screen
fast
4. MAs for ANY part - when using a grid 3x= ?
lead cone and adjustable lead shutters
fast film
15
genetic damage
5. When the density difference is great - there is
cathode
highest mA and smallest time fraction
high contrast
white
6. 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
medium or par
potter-bucky diagram
2
7. This is caused by mutations in gonadal cells - not seen until offspring are produced - mutations are not always bad
genetic and somatic
direct relationship
genetic damage
false
8. The x-ray machine we've been using has a rotating anode
6 ft
screen film
idiopathic
true
9. Film with: high detail - minimal graininess - increased exposure
slow film
3cc/#
quantum mottle
calcium tungstate
10. If the kVp is too high
increase scatter
reflective layer
afterglow
screens (phosphor layer)
11. Areas on film that should be black but come out grey - due to storage
the sharper the radiograph
genetic and somatic
fogging
density
12. If there's far or muscle in the way of an x-ray - those parts would be
fogging
sensitive cells
grey
grid
13. The exact area of the anode that the electrons hit
focal spot
paresis
screen film
non-screen
14. When processing film - the black areas are made of
non-screen
reflective layer
metallic silver
clinical signs
15. Is responsible for the number or quantity of x-rays
mAs
effective focal spot
rapidly dividing
decrease scatter radiation
16. What type of films need a lot more x-ray exposure and more time to expose them
arthritis
non-screen
osteomyelitis
true
17. General purpose film - forgiving
screens (phosphor layer)
erythema
6 ft
wide latitude film
18. We should always try and stay How many feet from our x-ray machine
6 ft
narrow latitude film
14 x 17
15% rule for kVp
19. Screen speed is.....to the exposure required to cause it to flouresce
false
higher mA
kVp or mAs
inversely proportional
20. An invisible image on the x-ray film Which becomes visible after it has been processed in the manual or automatic processor
movement
0.5mm
false
latent image
21. Size film we use here
false
contrast
latent image
14 x 17
22. The shorter the wavelength of the x-ray - the more powerful the x-ray is
luxations
idiopathic
slow
true
23. If you use an mA of 300 - What time fraction must i use to get an mAs of 10?
3cc/#
14 x 17
1/30
cathode
24. KVp=(2x thickness of body part in cm) + 40
25. This number in santes' rule refers to the distance the x-ray tube is from the x-ray film
40
mAs
anode
milliamperage
26. Is the device which restricts (narrows) the beam of x-rays as they leave the x-ray machine
non-screen
cathode
wobblers syndrome
collimator
27. Gelatinous center of disk - pinches spinal cord to cause herniated disk
fast
nucleus pulposis
rapidly dividing
indirect relationship
28. When the AgBr reacts and ionizes with light or x-rays - than at this point - What is on the film is known as the
medium film
latent image
10 cm
double mAs
29. Safe Operating Procedures
effective focal spot
latent image
1/30
SOP
30. Screens are classified according to
2.5
speed
alopecia
x-rays
31. 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
electrons
collimator
long scale of contrast
mAs
32. If the grid is stationary - more lines that are finer are less apt to show up on a radiograph - this is called....
rare earth elements
screen film
lines per centimeter
lens
33. Longer wavelengths of electromagnetic radiation have more penetrating power
rapidly dividing
false
the sharper the radiograph
inversely proportional
34. An abdominal radiograph should be taken at the peak of expiration
true
large crystals - small crystals
high contrast
decrease scatter radiation
35. Is only 1/3 the size of the actual focal spot
whiter
0.5mm
effective focal spot
mAs
36. What specific part of the eye is cloudy with a cataract
non-screen film
lens
stationary anode
paresis
37. Increase what value to penetrate thick body parts
false
kVp
latent image
indirect relationship
38. This stage of pregnancy is the most dangerous for the fetus
electrons
x-rays
first trimester
scatter radiation
39. Faster screens/less detail; slower screens/more detail
grid
medium or par
non-screen
large crystals - small crystals
40. Animal has broken femur - it's ideal to have How many radiographs for diagnostic purposes
2
14 x 17
cassette
wobblers syndrome
41. The mAs has to do with the power of the x-rays produced
cathode
luxations
false
the higher the mA
42. Improper centering of grid is one reason for
grid cutoff
lead cone and adjustable lead shutters
long scale of contrast
milliamperage
43. Extra vertebrae - scoliosis - fused vertebrae are all examples of
cathode
abnormalities
focal spot
false
44. What type of bone tumors started in the location they were first found
x-rays
grid cutoff
10 cm
primary
45. AgBr + x-rays =
focal spot
non-screen film
anode
screens (phosphor layer)
46. Extra pain is also called
caudal border of scapula
slow
hyperesthesia
effective focal spot
47. This gives you the desired mAs - and it gives less time for your patient to move
kVp or mAs
stationary and rotating
highest mA and smallest time fraction
cathode
48. Positive contrast agents appear what color on a radiograph
narrow latitude film
4 ft
mAs
white
49. What type of cystogram uses air and hypaque
dosimeter
double contrast
slow
first trimester
50. If barium leaks into the abdomen or lungs - it can cause what
inflammation an granuloma
osteomyelitis
higher mA
intensifying screens