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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. Extra pain is also called
reflective layer
slow film
hyperesthesia
high contrast
2. Radiographic signs dont always agree with what
grid cutoff
clinical signs
effective focal spot
grid cutoff
3. Faster screens/less detail; slower screens/more detail
large crystals - small crystals
inversely proportional
unexposed AgBr
anode
4. What gives off 4 times the amount of light photons than does the calcium tungstate (it gives off green light)
1/30
indirect relationship
rare earth elements
false
5. Is only 1/3 the size of the actual focal spot
effective focal spot
true
non-screen
grid cutoff
6. Aluminum filter
decrease scatter radiation
grid efficiency
the sharper the radiograph
metallic silver
7. If the kVp is too low
wobblers syndrome
spondylosis
metallic silver
no contrast
8. If the thorax is greater than or equal to....you should use a grid
15 cm
dosimeter
movement
line focus principle
9. Has a positive charge
phosphor type
genetic and somatic
anode
inversely proportional
10. Between density and kVp
grid
increase density
10 cm
indirect relationship
11. We should always try and stay How many feet from our x-ray machine
6 ft
luxations
sensitive cells
slow film
12. These screens have increased definition/detail - need to have increased radiation exposure
slow
medium or par
stationary and rotating
speed
13. The greater the number of electrons released
paralysis
non-screen film
adjustable lead shutters
the higher the mA
14. With the heel effect - more x-rays tend to be produced toward the cathode end
radiograph
quantum mottle
double contrast
true
15. Screen speed is.....to the exposure required to cause it to flouresce
luxations
white and black are reversed
15 cm
inversely proportional
16. Is the most common artifact in radiography
10
movement
joint mouse
large crystals - small crystals
17. If barium leaks into the abdomen or lungs - it can cause what
inflammation an granuloma
film cassette
diskospondylitis
decrease scatter radiation
18. MAs for chest 1/2x =?
milliamperage
white
2.5
speed
19. These screens are the most common type - they give good resolution with relatively low exposure
milliamperage
medium or par
diskospondylitis
wobblers syndrome
20. Compound of silver and bromine - chlorine - or iodine - all of which are in the halogen group of elements
silver halide
supercoat
non-screen
10 cm
21. If the grid is stationary - more lines that are finer are less apt to show up on a radiograph - this is called....
unexposed AgBr
potter-bucky diagram
true
lines per centimeter
22. To utilize this - you position the thickest part of the animal towards the cathode end of the x-ray tube
cathode
non-screen film
heel effect
Maximum Permissible Dose
23. When the density difference is great - there is
more light
high contrast
stationary anode
silver halide
24. Cassettes can be made of.....Which is the type here - or they can be made of magnesium - vinyl - etc
genetic and somatic
dosimeter
5
aluminum
25. Redness of the skin
potter-bucky diagram
erythema
0.5mm
cathode
26. Types of grids
the higher the mA
unexposed AgBr
focused and unfocused or parallel
arthritis
27. Sheets of luminescent phorphor crystals on a cardboard or plastic base
rapidly dividing
inflammation an granuloma
intensifying screens
density
28. Radiograph of a dogs skeleton has a long scale of contrast
aluminum
screens (phosphor layer)
false
idiopathic
29. NYSVMS Facility Accreditation Standards
grid efficiency
NYS Public Health Law #225
FFD
cathode
30. Measures the power of penetrability (quality) of the x-rays produced
screen film
cervical
back scatter
kVp
31. Is located in a focusing cup made of molybdenum which has a high melting point and helps to direct the electrons produced toward the cathode
fluoroscopy
cathode filament
hyperesthesia
5
32. Increased crystal size.....
true
kVp
metallic silver
more light
33. When this is exposed to x-rays - it will absorb photons (quanta) and give off photons of visible light which the film is sensitive to (give off blue light)
peak kilovoltage
non-screen
focal film distance
calcium tungstate
34. The shorter the wavelength of the x-ray - the more powerful the x-ray is
electrons
true
grey
double mAs
35. There are......intensifying screens within a cassette
potter-bucky diagram
2
false
cervical
36. What is one of the most common areas of occurance for spinal problems ( 85% dachshunds)
false
10 cm
reflective layer
thoracic(caudal) and lumbar
37. X-ray machines come with a set one - we cannot adjust it
true
40
focal spot
santes' rule
38. White against black - like the x-ray of a plain skeleton
false
short scale of contrast
white and black are reversed
narrow latitude film
39. X-ray gloves have to have....of lead equivalent
0.5mm
effective focal spot
decrease scatter radiation
grid efficiency
40. The picture formed after the film has been exposed to x-rays and then processed into a visible image.
contrast
radiograph
false
fast film
41. Screens are classified according to
scatter radiation
caudal border of scapula
genetic damage
speed
42. A type of electromagnetic radiation which have a shorter wavelength than visible light
x-rays
white
density
arthritis
43. Film with silver crystals that is more sensitive to fluorescent light emitted from intensifying screens than to ionizing radiation
secondary
true
screen film
phosphor type
44. Legally - a non-pregnant woman is required to hold a HBC dog for radiographs in NYS
more x-rays produced
false
40
true
45. If there's no object in the way of an x-ray - the picture would be
iodine
black
visible light
intensifying screens
46. 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
narrow latitude film
whiter
47. Calcium 'bridges' between adjacent vertebrae
highest mA and smallest time fraction
spondylosis
stationary anode
adjustable lead shutters
48. What is the name for the cartilage flap in the shoulder joint that has broken free and is floating around in the joint fluid
rapidly dividing
increase density
joint mouse
unexposed AgBr
49. Most commonly used film - compromise between graininess and speed (detail)
stationary anode
medium film
intussusception
6 ft
50. Is to the left - electrons bounce off it at a 20 degree angle
grid efficiency
anode
double mAs
0.5mm