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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
4 ft
grid cutoff
increase density
10
2. This pertains to the size of the electron cloud and thus directly to the number of x-ray produced
decrease scatter radiation
wobblers syndrome
mAs
stops peristalsis
3. Give a 25% barium solution for upper GI series - and give At what dose?
somatic damage
black
white
3cc/#
4. We are supposed to use a grid if the abdomen is greater than or equal to......
peak kilovoltage
radiographic detail
10 cm
movement
5. Must increase.....to compensate for x-ray absorption by the grid. (we triple our mAs)
0.25mm
kVp or mAs
hypaque
long scale of contrast
6. These screens are high speed - they decrease exposure - poorer detail - able to penetrate thicker areas
cathode
milliamperage
rotating anode
fast
7. What needs to have high levels of x-ray to light conversion with the correct energy and color for the type of film used
short scale of contrast
screens (phosphor layer)
long scale of contrast
kVp
8. Infection of a disk - or bone near it
diskospondylitis
double contrast
heel effect
dosimeter
9. Is on the anode and is angled at approximately 20 degrees from vertical
silver halide
diskospondylitis
white
focal spot
10. What specific part of the eye is cloudy with a cataract
anode
0.5mm
lens
5
11. Weakness
paresis
grid cutoff
slow
AgBr
12. Positive contrast agents appear what color on a radiograph
white
double contrast
hyperesthesia
annulus fibrosis
13. Incorrect grid focus is one reason for
milliamperage
grid cutoff
silver halide
movement
14. What is the name for the cartilage flap in the shoulder joint that has broken free and is floating around in the joint fluid
joint mouse
speed
calcium tungstate
wide latitude film
15. Film with silver crystals that is more sensitive to fluorescent light emitted from intensifying screens than to ionizing radiation
screen film
caudal border of scapula
false
pneumocystogram
16. Increase developing time and temp of developing fluid
light source
increase density
primary
stationary anode
17. A grid must be used on the chest if it's 11cm thick
false
latent image
grid cutoff
5
18. When the density difference is great - there is
phosphor type
milliamperage
non-screen film
high contrast
19. An invisible image on the x-ray film Which becomes visible after it has been processed in the manual or automatic processor
latent image
false
cathode
unexposed AgBr
20. This is used to take 'real-time' radiographs - used a lot in horses
visible light
fluoroscopy
false
luxations
21. What type of film has the x-rays directly cause the latent image to be formed
scatter radiation
narrow latitude film
non-screen
15
22. If the x-ray tube is not 36-40 inches from the grid - this is called the
grid cutoff
true
clinical signs
lens
23. Is to the left - electrons bounce off it at a 20 degree angle
silver halide
anode
no contrast
scatter radiation
24. These screens are the most common type - they give good resolution with relatively low exposure
indirect relationship
medium or par
short scale of contrast
2
25. Aluminum filter
fluoroscopy
phosphor layer
decrease scatter radiation
thoracic(caudal) and lumbar
26. What type of film has no screens or film cassettes
the higher the mA
non-screen
the sharper the radiograph
film cassette
27. What type of films need a lot more x-ray exposure and more time to expose them
0.25mm
non-screen
grey
x-rays
28. Legally - a non-pregnant woman is required to hold a HBC dog for radiographs in NYS
false
clinical signs
lead cone and adjustable lead shutters
grid cutoff
29. What spinal problem do doberman's get
inverse square law
wobblers syndrome
annulus fibrosis
phosphor layer
30. Film with: high detail - minimal graininess - increased exposure
adjustable lead shutters
more light
slow film
white
31. Lead equivalent for apron
0.25mm
x-rays
FFD
inverse square law
32. Is to the right - it produces the electrons
cathode
true
decrease scatter radiation
non-screen
33. When a body part is greater than or equal to.....you should use a grid
SOP
10 cm
false
grid cutoff
34. When doing a lateral radiograph of the thorax/chest - the x-ray beam should be centered over what specific anatomical landmark
grid efficiency
stationary and rotating
caudal border of scapula
black
35. If there's no object in the way of an x-ray - the picture would be
scatter radiation
fluoroscopy
black
genetic and somatic
36. Distance from the grid to the x-ray tube (36-40 inches)
grid focus
4 ft
reflective layer
grid cutoff
37. Lead equivalent for thyroid sheild
screen film
metallic silver
0.5mm
14 x 17
38. Compound of silver and bromine - chlorine - or iodine - all of which are in the halogen group of elements
false
silver halide
clinical signs
2
39. The tendency of a luminescent compound to continue to give off light after x-radiation has stopped
true
mAs
afterglow
non-screen
40. Ideally is very small
focal spot
inversely proportional
reflective layer
scatter radiation
41. MAs for chest 1/2x =?
4 ft
2.5
cathode and anode
true
42. With what kind of typical film do we get 95% exposure due to visible light and 5% is due to the x-rays directly
stops peristalsis
screen film
first trimester
fixer
43. Types of grids
movement
focused and unfocused or parallel
long scale of contrast
scatter radiation
44. If there's bone in the way of an x-ray -. those parts would be
movement
5
whiter
iodine
45. These screens have increased definition/detail - need to have increased radiation exposure
slow
false
10 cm
focal spot
46. General purpose film - forgiving
40
fogging
wide latitude film
more x-rays produced
47. When the AgBr reacts and ionizes with light or x-rays - than at this point - What is on the film is known as the
latent image
stops peristalsis
false
decrease scatter radiation
48. What needs to have high levels of x-ray absorbtion
false
highest mA and smallest time fraction
screens (phosphor layer)
true
49. With this procedure - no x-ray film is involved at all
osteomyelitis
fluoroscopy
whiter
latent image
50. Radiographic signs dont always agree with what
clinical signs
intussusception
joint mouse
mAs