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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. If there's no object in the way of an x-ray - the picture would be
black
density
14 x 17
rare earth elements
2. What is the term for the spotty appearance on the film due to the large crystals in the screens
visible light
0.5mm
quantum mottle
stops peristalsis
3. A grid must be used on the chest if it's 11cm thick
screens (phosphor layer)
false
milliamperage
supercoat
4. This pertains to the size of the electron cloud and thus directly to the number of x-ray produced
mAs
narrow latitude film
non-screen
2
5. These cells are the most sensitive to radiation
double mAs
focused and unfocused or parallel
rapidly dividing
cathode
6. If you use an mA of 300 - What time fraction must i use to get an mAs of 10?
fast
1/30
non-screen
false
7. Is the device which restricts (narrows) the beam of x-rays as they leave the x-ray machine
collimator
paralysis
milliamperage
4 ft
8. What are the 2 types of anodes
anode
stationary and rotating
back scatter
focal spot
9. The picture formed after the film has been exposed to x-rays and then processed into a visible image.
annulus fibrosis
radiograph
more x-rays produced
thoracic(caudal) and lumbar
10. Old mAs x (new FFD)2 divided by (old FFD)2
false
kVp
false
inverse square law
11. The distance from the x-ray tube to the x-ray machine is the SID (source image distance) - or the FFD (also known as....)
grid cutoff
more x-rays produced
focal film distance
cathode filament
12. Between density and kVp
true
indirect relationship
focal spot
4 ft
13. If perforation is suspected - what compound do we use when radiographing
highest mA and smallest time fraction
non-screen
iodine
false
14. Film with: ultra speed - grainier image - less exposure needed
false
screen film
FFD
fast film
15. What type of film gives more detailed radiographs but more exposure to everyone involved? (commonly used as dental film - or for extremities)
osteomyelitis
false
non-screen
joint mouse
16. What needs to have high levels of x-ray to light conversion with the correct energy and color for the type of film used
screens (phosphor layer)
mAs
latent image
high contrast
17. Incorrect grid focus is one reason for
false
grid cutoff
10
osteomyelitis
18. Calcium tungstate - rare earth elements
phosphor type
santes' rule
x-rays
non-screen
19. Is influenced by quantity of x-rays(mAs) - quality of x-rays (kVp) - type and thickness of tissue being x-rayed
milliamperage
density
luxations
screens (phosphor layer)
20. The greater the number of electrons released
the higher the mA
narrow latitude film
genetic and somatic
focal spot
21. What type of cystogram uses air and hypaque
medium or par
screens (phosphor layer)
15 cm
double contrast
22. Amount of radiation a person can recieve in a calendar year
cathode
Maximum Permissible Dose
speed
reflective layer
23. Positive contrast agents appear what color on a radiograph
erythema
diskospondylitis
white
40
24. Pigments tend to decrease the lateral spread of light so there is increased detail
paralysis
collimator
phosphor layer dyes
SOP
25. The effective focal spot is approximately 1/3 the size of the actual focal spot
movement
true
kVp or mAs
latent image
26. Legally - a non-pregnant woman is required to hold a HBC dog for radiographs in NYS
adjustable lead shutters
genetic and somatic
back scatter
false
27. What is one of the most common areas of occurance for spinal problems ( 85% dachshunds)
thoracic(caudal) and lumbar
silver halide
annulus fibrosis
non-screen film
28. Film with: high detail - minimal graininess - increased exposure
SOP
highest mA and smallest time fraction
slow film
black
29. Means more electrons will be released from the filament and directed at the anode
higher mA
0.25mm
0.5mm
radiograph
30. This stage of pregnancy is the most dangerous for the fetus
first trimester
hyperesthesia
stationary and rotating
rotating anode
31. With the heel effect - more x-rays tend to be in the beam toward this end of the tube
direct relationship
osteomyelitis
cathode
non-screen
32. If there's bone in the way of an x-ray -. those parts would be
diskospondylitis
0.5mm
whiter
more light
33. AgBr + x-rays =
intensifying screens
non-screen film
caudal border of scapula
increase density
34. Slowly growing dividing cells are the most sensitive to the effects of ionizing radiaton
false
osteomyelitis
40
genetic and somatic
35. 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
true
kVp
thoracic(caudal) and lumbar
electrons
36. If there's metal in the way of an x-ray - than no x-rays will get through and that part would be
latent image
white
adjustable lead shutters
grey
37. The shorter the wavelength of the x-ray - the more powerful the x-ray is
effective focal spot
higher mA
white
true
38. Monitors personal exposure to radiation
dosimeter
10 cm
light source
direct relationship
39. Weakness
paresis
speed
latent image
secondary
40. General purpose film - forgiving
rotating anode
slow film
wide latitude film
5
41. Collimator
decrease scatter radiation
false
unexposed AgBr
white and black are reversed
42. Body cells affected - damage seen during lifetime of creature - can be immediate or cummulative
cathode
true
somatic damage
scatter radiation
43. An abdominal radiograph should be taken at the peak of expiration
true
medium film
rotating anode
iodine
44. A clear protective layer on radiographic film
density
white and black are reversed
nucleus pulposis
supercoat
45. What type of film has the x-rays directly cause the latent image to be formed
10 cm
metallic silver
screen film
non-screen
46. To utilize this - you position the thickest part of the animal towards the cathode end of the x-ray tube
true
10
heel effect
grid cutoff
47. If there's far or muscle in the way of an x-ray - those parts would be
silver halide
paresis
grey
0.25mm
48. The back of the cassette is made of lead to decrease....
true
non-screen
annulus fibrosis
back scatter
49. Infection of a disk - or bone near it
wobblers syndrome
paralysis
diskospondylitis
slow film
50. MAs for extremities
AgBr
5
decrease scatter radiation
0.5mm
Sorry!:) No result found.
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