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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. DJD is also called
intussusception
arthritis
reflective layer
double mAs
2. We are supposed to use a grid if the abdomen is greater than or equal to......
nucleus pulposis
10 cm
stationary and rotating
fogging
3. Is to the left - electrons bounce off it at a 20 degree angle
santes' rule
anode
line focus principle
4 ft
4. Safe Operating Procedures
heel effect
double mAs
abnormalities
SOP
5. Is influenced by quantity of x-rays(mAs) - quality of x-rays (kVp) - type and thickness of tissue being x-rayed
rare earth elements
potter-bucky diagram
2
density
6. We should always try and stay How many feet from our x-ray machine
more light
mAs
focal film distance
6 ft
7. Size film we use here
no contrast
back scatter
14 x 17
40
8. Extra vertebrae - scoliosis - fused vertebrae are all examples of
abnormalities
santes' rule
hyperesthesia
higher mA
9. AgBr + light =
black
10 cm
dosimeter
screen film
10. These crystals will turn white/clear when processing film
unexposed AgBr
white
grid efficiency
hyperesthesia
11. Collimator
cathode
FFD
false
decrease scatter radiation
12. Negative contrast agents appear what color on a radiograph
0.5mm
the higher the mA
black
osteomyelitis
13. Within the collimator outlines just how much is collimated
15% rule for kVp
lines per centimeter
light source
unexposed AgBr
14. What is the term for a negative contrast cystogram where we inject air
true
rare earth elements
pneumocystogram
quantum mottle
15. A living animal - with tissue densities such as fat - muscle - fluid - and air
long scale of contrast
SOP
false
lines per centimeter
16. The efficiency of this reflects light made by phosphors back towards the film
stops peristalsis
pneumocystogram
decrease scatter radiation
reflective layer
17. In the dark room - the safe light (red light) needs to be at least how far away from the loading bench
focal film distance
phosphor layer dyes
4 ft
electrons
18. What type of film has the x-rays directly cause the latent image to be formed
white
non-screen
focal film distance
the higher the mA
19. This gives you the desired mAs - and it gives less time for your patient to move
lead cone and adjustable lead shutters
highest mA and smallest time fraction
true
mAs
20. X-ray gloves have to have....of lead equivalent
density
0.5mm
true
calcium tungstate
21. For bladder cystography - we use what contrast material instead of barium
black
true
decrease scatter radiation
hypaque
22. Areas on film that should be black but come out grey - due to storage
kVp
fogging
black
effective focal spot
23. What type of cystogram uses air and hypaque
FFD
double contrast
fogging
phosphor layer
24. Film that is more sensitive to ionizing radiation than to fluorescent light
cervical
non-screen film
lead cone and adjustable lead shutters
radiograph
25. If barium leaks into the abdomen or lungs - it can cause what
focused and unfocused or parallel
anode
somatic damage
inflammation an granuloma
26. Has a filament made of tungsten - due to the high melting point
cathode and anode
annulus fibrosis
dosimeter
the sharper the radiograph
27. What is the term for an unknown cause
15% rule for kVp
lead cone and adjustable lead shutters
cervical
idiopathic
28. Faster screens/less detail; slower screens/more detail
rare earth elements
large crystals - small crystals
true
screen film
29. Refers to the 'blackness' of a radiograph
density
rapidly dividing
kVp
santes' rule
30. The greater the number of electrons released
4 ft
arthritis
inverse square law
the higher the mA
31. Redness of the skin
erythema
fast
wobblers syndrome
milliamperage
32. Must be radiolucent
film cassette
increase scatter
rare earth elements
screen film
33. Crystals + x-rays = ?
stationary and rotating
visible light
sensitive cells
true
34. What is the term for when the animal's bowel engulfs a piece of bowel distal to it - causing blockage
intussusception
lines per centimeter
clinical signs
thoracic(caudal) and lumbar
35. Has a negative charge
genetic damage
intensifying screens
cathode
slow
36. What needs to have high levels of x-ray absorbtion
kVp
screens (phosphor layer)
adjustable lead shutters
intensifying screens
37. As this increases - the intensity of the x-ray beam decreases - so the beam intensity increases - and the mAs must decrease to compensate
inverse square law
adjustable lead shutters
first trimester
FFD
38. These screens are the most common type - they give good resolution with relatively low exposure
cathode and anode
medium or par
intensifying screens
3cc/#
39. Can cause damage to living cells through the process of excitation or ionization of electrons in the orbits around atoms
anode
x-rays
arthritis
mAs
40. Is to the right - it produces the electrons
santes' rule
screen film
medium or par
cathode
41. A grid must be used on the chest if it's 11cm thick
white and black are reversed
false
non-screen
contrast
42. This is caused by mutations in gonadal cells - not seen until offspring are produced - mutations are not always bad
the higher the mA
genetic damage
stops peristalsis
grid cutoff
43. These screens are high speed - they decrease exposure - poorer detail - able to penetrate thicker areas
afterglow
stops peristalsis
highest mA and smallest time fraction
fast
44. What must have little or no 'afterglow'
2
screens (phosphor layer)
electrons
alopecia
45. With the heel effect - more x-rays tend to be produced toward the cathode end
silver halide
phosphor type
focal spot
true
46. The focused grid is upside down - is one reason for
fixer
highest mA and smallest time fraction
lens
grid cutoff
47. Calcium 'bridges' between adjacent vertebrae
spondylosis
double contrast
first trimester
reflective layer
48. 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
silver halide
cathode filament
3cc/#
density
49. A type of electromagnetic radiation which have a shorter wavelength than visible light
kVp
grid cutoff
x-rays
5
50. Are produced when electrons are slowed down or stopped by atoms in the target area where they are aimed
screens (phosphor layer)
x-rays
milliamperage
non-screen