SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
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. What is the term for the spotty appearance on the film due to the large crystals in the screens
peak kilovoltage
mAs
phosphor type
quantum mottle
2. Ideally is very small
focal spot
anode
clinical signs
grid cutoff
3. Slowly growing dividing cells are the most sensitive to the effects of ionizing radiaton
false
medium or par
mAs
grid cutoff
4. With the heel effect - more x-rays tend to be produced toward the cathode end
focal spot
true
sensitive cells
stops peristalsis
5. Loss of movement in legs (front and/or back)
paralysis
40
kVp
4 ft
6. Increase mAs and kVp in order to...
potter-bucky diagram
increase density
fluoroscopy
lead cone and adjustable lead shutters
7. Less forgiving - high contrast - cannot tolerate changes in exposure or processing
narrow latitude film
slow
the higher the mA
40
8. To utilize this - you position the thickest part of the animal towards the cathode end of the x-ray tube
heel effect
joint mouse
15
4 ft
9. Is only 1/3 the size of the actual focal spot
grey
arthritis
effective focal spot
non-screen
10. Must increase.....to compensate for x-ray absorption by the grid. (we triple our mAs)
kVp or mAs
cathode
grid cutoff
double contrast
11. A device that moves the grid back and forth under the table. it helps to prevent grid lines from showing
slow
fluoroscopy
intensifying screens
potter-bucky diagram
12. Film that is more sensitive to ionizing radiation than to fluorescent light
non-screen film
0.25mm
true
abnormalities
13. What type of film has the x-rays directly cause the latent image to be formed
latent image
non-screen
radiographic detail
indirect relationship
14. Between density and kVp
line focus principle
true
indirect relationship
idiopathic
15. Lead equivalent for thyroid sheild
0.5mm
indirect relationship
spondylosis
erythema
16. What gives off 4 times the amount of light photons than does the calcium tungstate (it gives off green light)
rare earth elements
NYS Public Health Law #225
cathode
focal spot
17. Is to the right - it produces the electrons
10 cm
cathode
white
fluoroscopy
18. Is the source of electrons
fast
cathode
grid cutoff
spondylosis
19. If the x-ray tube is not 36-40 inches from the grid - this is called the
grid cutoff
light source
anode
screens (phosphor layer)
20. The electrical current sent through the filament to cause this electron release is called
genetic and somatic
milliamperage
back scatter
calcium tungstate
21. What is the difference between fluoroscopy and a regular radiograph
focal spot
15% rule for kVp
white and black are reversed
increase density
22. What type of bone tumors started elsewhere and spread to the location it was found
SOP
secondary
cathode and anode
primary
23. Has a filament made of tungsten - due to the high melting point
false
cathode filament
cathode and anode
lines per centimeter
24. Old mAs x (new FFD)2 divided by (old FFD)2
back scatter
joint mouse
inverse square law
scatter radiation
25. 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
decrease scatter radiation
white
rotating anode
grid cutoff
26. Is the electrical current that heats the filament
intensifying screens
milliamperage
slow
lead cone and adjustable lead shutters
27. Extra pain is also called
non-screen
hyperesthesia
spondylosis
black
28. Collimator
afterglow
14 x 17
back scatter
decrease scatter radiation
29. If there's metal in the way of an x-ray - than no x-rays will get through and that part would be
true
white
somatic damage
latent image
30. Bone infection - also known as spondylitis
grid cutoff
density
peak kilovoltage
osteomyelitis
31. Legally - a non-pregnant woman is required to hold a HBC dog for radiographs in NYS
true
wide latitude film
false
speed
32. Screen speed is.....to the exposure required to cause it to flouresce
whiter
inversely proportional
0.5mm
non-screen
33. Outer layer of disk ( dries out and cracks and causes disk to herniate)
non-screen film
kVp
kVp or mAs
annulus fibrosis
34. What needs to have high levels of x-ray to light conversion with the correct energy and color for the type of film used
no contrast
grid cutoff
screens (phosphor layer)
lead cone and adjustable lead shutters
35. Monitors personal exposure to radiation
dosimeter
pneumocystogram
white
spondylosis
36. The mAs has to do with the power of the x-rays produced
10 cm
false
long scale of contrast
grid efficiency
37. Means more electrons will be released from the filament and directed at the anode
decrease scatter radiation
kVp or mAs
diskospondylitis
higher mA
38. When processing film - the black areas are made of
density
paresis
indirect relationship
metallic silver
39. What type of bone tumors started in the location they were first found
kVp
abnormalities
effective focal spot
primary
40. Animal has broken femur - it's ideal to have How many radiographs for diagnostic purposes
luxations
fogging
grid focus
2
41. Calcium 'bridges' between adjacent vertebrae
cathode and anode
double mAs
spondylosis
luxations
42. We ideally take a radiograph of the abdomen at the peak of inspiration
false
non-screen
reflective layer
screen film
43. Measures the power of penetrability (quality) of the x-rays produced
first trimester
metallic silver
somatic damage
kVp
44. Film with: ultra speed - grainier image - less exposure needed
silver halide
fast film
NYS Public Health Law #225
stationary anode
45. The back of the cassette is made of lead to decrease....
back scatter
x-rays
annulus fibrosis
sensitive cells
46. Negative contrast agents appear what color on a radiograph
radiograph
white
anode
black
47. This stage of pregnancy is the most dangerous for the fetus
inversely proportional
first trimester
more x-rays produced
cathode and anode
48. Has a negative charge
x-rays
light source
cathode
scatter radiation
49. The distance from the x-ray tube to the x-ray machine is the SID (source image distance) - or the FFD (also known as....)
phosphor type
focal film distance
metallic silver
focal spot
50. MAs for extremities
high contrast
5
calcium tungstate
kVp