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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. What type of film has no screens or film cassettes
pneumocystogram
cervical
non-screen
lens
2. Collimator
kVp or mAs
decrease scatter radiation
collimator
grid cutoff
3. We are supposed to use a grid if the abdomen is greater than or equal to......
10 cm
iodine
large crystals - small crystals
lines per centimeter
4. A type of electromagnetic radiation which have a shorter wavelength than visible light
x-rays
whiter
quantum mottle
line focus principle
5. Is responsible for the number or quantity of x-rays
afterglow
mAs
grid cutoff
radiographic detail
6. If perforation is suspected - what compound do we use when radiographing
rapidly dividing
iodine
false
collimator
7. Must increase.....to compensate for x-ray absorption by the grid. (we triple our mAs)
3cc/#
kVp or mAs
lines per centimeter
milliamperage
8. Is the measurement for the maximum energy available at that setting
peak kilovoltage
whiter
NYS Public Health Law #225
anode
9. Increased thickness of this leads to increased x-ray absorption and increased visible light emission from the crystals
quantum mottle
phosphor layer
true
x-rays
10. To utilize this - you position the thickest part of the animal towards the cathode end of the x-ray tube
focal spot
heel effect
x-rays
cathode
11. The smaller the focal spot
spondylosis
the sharper the radiograph
focused and unfocused or parallel
the higher the mA
12. What is one of the most common area of occurance for spinal problems (15% dobermans)
6 ft
1/30
potter-bucky diagram
cervical
13. What type of cystogram uses air and hypaque
mAs
double contrast
indirect relationship
density
14. Is influenced by quantity of x-rays(mAs) - quality of x-rays (kVp) - type and thickness of tissue being x-rayed
0.5mm
decrease scatter radiation
medium film
density
15. What needs to have high levels of x-ray to light conversion with the correct energy and color for the type of film used
fluoroscopy
x-rays
osteomyelitis
screens (phosphor layer)
16. What type of bone tumors started in the location they were first found
primary
true
grid efficiency
sensitive cells
17. Why do we not give atropine with a contrast radiograph
reflective layer
stops peristalsis
silver halide
cathode and anode
18. MAs for abdomen (standard mAs) x=?
iodine
high contrast
5
sensitive cells
19. The back of the cassette is made of lead to decrease....
3cc/#
screens (phosphor layer)
focal spot
back scatter
20. Lead equivalent for apron
0.25mm
kVp or mAs
double mAs
non-screen film
21. Extra vertebrae - scoliosis - fused vertebrae are all examples of
cassette
abnormalities
spondylosis
film cassette
22. Outer layer of disk ( dries out and cracks and causes disk to herniate)
2.5
effective focal spot
annulus fibrosis
0.25mm
23. Is the device which restricts (narrows) the beam of x-rays as they leave the x-ray machine
10
non-screen film
collimator
dosimeter
24. Weakness
paresis
screens (phosphor layer)
stationary anode
grid cutoff
25. When doing a lateral radiograph of the thorax/chest - the x-ray beam should be centered over what specific anatomical landmark
caudal border of scapula
the higher the mA
2
first trimester
26. If the x-ray tube is not 36-40 inches from the grid - this is called the
grid cutoff
true
diskospondylitis
afterglow
27. Measures the power of penetrability (quality) of the x-rays produced
cathode and anode
screen film
heel effect
kVp
28. Increase developing time and temp of developing fluid
double contrast
erythema
increase density
grid cutoff
29. Legally - a non-pregnant woman is required to hold a HBC dog for radiographs in NYS
phosphor layer dyes
false
screen film
5
30. Can cause damage to living cells through the process of excitation or ionization of electrons in the orbits around atoms
x-rays
mAs
inflammation an granuloma
3cc/#
31. A lightproof encasement designed to hold x-ray film and intensifying screens in close contact
cassette
kVp
focal film distance
grey
32. For bladder cystography - we use what contrast material instead of barium
dosimeter
radiograph
peak kilovoltage
hypaque
33. If there's no object in the way of an x-ray - the picture would be
black
peak kilovoltage
density
4 ft
34. Types of cell damage
phosphor type
genetic and somatic
latent image
screen film
35. This gives you the desired mAs - and it gives less time for your patient to move
focal spot
density
highest mA and smallest time fraction
lines per centimeter
36. Screens are classified according to
speed
grey
kVp
aluminum
37. Redness of the skin
clinical signs
erythema
double mAs
film cassette
38. This stage of pregnancy is the most dangerous for the fetus
density
first trimester
focused and unfocused or parallel
no contrast
39. Monitors personal exposure to radiation
kVp or mAs
alopecia
dosimeter
inflammation an granuloma
40. KVp=(2x thickness of body part in cm) + 40
41. When the density difference is great - there is
reflective layer
intussusception
2
high contrast
42. With the heel effect - more x-rays tend to be in the beam toward this end of the tube
no contrast
cathode
silver halide
radiographic detail
43. An abdominal radiograph should be taken at the peak of expiration
non-screen
density
true
direct relationship
44. A device that moves the grid back and forth under the table. it helps to prevent grid lines from showing
focal spot
potter-bucky diagram
intussusception
silver halide
45. DJD is also called
arthritis
15% rule for kVp
kVp
phosphor layer
46. What type of film gives more detailed radiographs but more exposure to everyone involved? (commonly used as dental film - or for extremities)
inflammation an granuloma
non-screen
false
electrons
47. Radiograph of a dogs skeleton has a long scale of contrast
false
grid cutoff
increase density
grid cutoff
48. Is only 1/3 the size of the actual focal spot
primary
short scale of contrast
effective focal spot
fast
49. There are......intensifying screens within a cassette
intensifying screens
2
higher mA
white and black are reversed
50. On a lateral view of the chest the aorta is dorsal to the caudal vena cava
true
false
wobblers syndrome
1/30