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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. Improper centering of grid is one reason for
true
grid cutoff
back scatter
film cassette
2. Weakness
paresis
wobblers syndrome
cervical
focal spot
3. If there's far or muscle in the way of an x-ray - those parts would be
sensitive cells
slow
AgBr
grey
4. Types of grids
density
focused and unfocused or parallel
paralysis
increase scatter
5. X-ray gloves have to have....of lead equivalent
non-screen
0.5mm
pneumocystogram
cathode and anode
6. The exact area of the anode that the electrons hit
lead cone and adjustable lead shutters
focal spot
double mAs
grid efficiency
7. Has a negative charge
mAs
genetic and somatic
fast
cathode
8. Gelatinous center of disk - pinches spinal cord to cause herniated disk
nucleus pulposis
0.25mm
screen film
scatter radiation
9. Is determined by the ratio of the height of the lead strips to the distance between them
grid efficiency
arthritis
kVp or mAs
joint mouse
10. Growth - gonadal - neoplastic - and metabolically active cells are what kind of cells
1/30
first trimester
increase scatter
rapidly dividing
11. On a lateral view of the chest the aorta is dorsal to the caudal vena cava
true
false
3cc/#
phosphor layer dyes
12. Collimator
reflective layer
focal spot
decrease scatter radiation
density
13. General purpose film - forgiving
6 ft
4 ft
santes' rule
wide latitude film
14. When more electrons hit the focal spot on the anode
heel effect
more x-rays produced
fast
intussusception
15. Outer layer of disk ( dries out and cracks and causes disk to herniate)
annulus fibrosis
inflammation an granuloma
screens (phosphor layer)
intussusception
16. Hairloss or baldness
white and black are reversed
alopecia
hypaque
x-rays
17. The type of collimator that we have here
adjustable lead shutters
hypaque
higher mA
NYS Public Health Law #225
18. Dislocations or separations
false
large crystals - small crystals
true
luxations
19. What gives off 4 times the amount of light photons than does the calcium tungstate (it gives off green light)
SOP
stops peristalsis
contrast
rare earth elements
20. These screens are the most common type - they give good resolution with relatively low exposure
latent image
screens (phosphor layer)
medium or par
heel effect
21. Redness of the skin
adjustable lead shutters
contrast
erythema
back scatter
22. Bone infection - also known as spondylitis
true
osteomyelitis
grid focus
short scale of contrast
23. The shorter the wavelength of the x-ray - the more powerful the x-ray is
true
potter-bucky diagram
x-rays
inverse square law
24. Slowly growing dividing cells are the most sensitive to the effects of ionizing radiaton
potter-bucky diagram
false
whiter
radiographic detail
25. What type of film has the x-rays directly cause the latent image to be formed
Maximum Permissible Dose
non-screen
mAs
paresis
26. When doing a lateral radiograph of the thorax/chest - the x-ray beam should be centered over what specific anatomical landmark
paresis
non-screen
false
caudal border of scapula
27. This is inversely proportional to screen speed
radiographic detail
spondylosis
phosphor layer dyes
sensitive cells
28. What must have little or no 'afterglow'
alopecia
indirect relationship
screens (phosphor layer)
paresis
29. White against black - like the x-ray of a plain skeleton
increase scatter
screen film
radiograph
short scale of contrast
30. For bladder cystography - we use what contrast material instead of barium
grid cutoff
quantum mottle
visible light
hypaque
31. What type of bone tumors started elsewhere and spread to the location it was found
nucleus pulposis
secondary
false
increase scatter
32. Film with: ultra speed - grainier image - less exposure needed
fast film
screens (phosphor layer)
decrease scatter radiation
idiopathic
33. Amount of radiation a person can recieve in a calendar year
Maximum Permissible Dose
speed
slow film
reflective layer
34. When the density difference is great - there is
slow
high contrast
phosphor type
primary
35. Size film we use here
kVp
phosphor layer dyes
medium film
14 x 17
36. Increase mAs and kVp in order to...
non-screen
large crystals - small crystals
increase density
fluoroscopy
37. KVp=(2x thickness of body part in cm) + 40
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183
38. Most commonly used film - compromise between graininess and speed (detail)
AgBr
lead cone and adjustable lead shutters
medium film
non-screen
39. NYSVMS Facility Accreditation Standards
NYS Public Health Law #225
radiographic detail
mAs
medium or par
40. A clear protective layer on radiographic film
false
supercoat
back scatter
adjustable lead shutters
41. This is caused by mutations in gonadal cells - not seen until offspring are produced - mutations are not always bad
cervical
whiter
genetic damage
phosphor type
42. If there's no object in the way of an x-ray - the picture would be
stops peristalsis
black
false
focal spot
43. A living animal - with tissue densities such as fat - muscle - fluid - and air
latent image
non-screen film
short scale of contrast
long scale of contrast
44. What needs to have high levels of x-ray absorbtion
indirect relationship
the sharper the radiograph
screens (phosphor layer)
slow film
45. 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
dosimeter
electrons
fast film
grid efficiency
46. If the grid is stationary - more lines that are finer are less apt to show up on a radiograph - this is called....
1/30
stationary and rotating
wide latitude film
lines per centimeter
47. When a body part is greater than or equal to.....you should use a grid
stationary anode
cathode
10 cm
effective focal spot
48. Rotating anode
decrease scatter radiation
kVp
arthritis
grid cutoff
49. This number in santes' rule refers to the distance the x-ray tube is from the x-ray film
iodine
cathode
40
movement
50. If barium leaks into the abdomen or lungs - it can cause what
false
back scatter
inflammation an granuloma
first trimester