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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. General purpose film - forgiving
lens
wide latitude film
first trimester
rotating anode
2. Screen speed is.....to the exposure required to cause it to flouresce
hyperesthesia
grid efficiency
mAs
inversely proportional
3. The 2 types of collimators are
aluminum
reflective layer
lead cone and adjustable lead shutters
true
4. Film with: ultra speed - grainier image - less exposure needed
double contrast
fast film
genetic and somatic
direct relationship
5. Has a filament made of tungsten - due to the high melting point
higher mA
cathode and anode
abnormalities
focal film distance
6. Within the collimator outlines just how much is collimated
grid cutoff
light source
osteomyelitis
rotating anode
7. Lead equivalent for thyroid sheild
iodine
latent image
true
0.5mm
8. Amount of radiation a person can recieve in a calendar year
caudal border of scapula
non-screen
fast film
Maximum Permissible Dose
9. AgBr + light =
screen film
false
sensitive cells
medium or par
10. If the grid is stationary - more lines that are finer are less apt to show up on a radiograph - this is called....
short scale of contrast
fogging
grid cutoff
lines per centimeter
11. Calcium tungstate - rare earth elements
x-rays
phosphor type
kVp or mAs
radiograph
12. A...is a series of lead strips on edge which only allow the primary x-rays - which are traveling in straight lines - reach the film
cathode
hypaque
grid
fixer
13. These screens are high speed - they decrease exposure - poorer detail - able to penetrate thicker areas
primary
somatic damage
the sharper the radiograph
fast
14. Positive contrast agents appear what color on a radiograph
metallic silver
collimator
white
focal spot
15. If there's no object in the way of an x-ray - the picture would be
phosphor type
4 ft
black
first trimester
16. This number in santes' rule refers to the distance the x-ray tube is from the x-ray film
iodine
40
0.5mm
hyperesthesia
17. We ideally take a radiograph of the abdomen at the peak of inspiration
15 cm
false
stops peristalsis
collimator
18. This pertains to the size of the electron cloud and thus directly to the number of x-ray produced
mAs
slow
somatic damage
2
19. Weakness
double mAs
3cc/#
rare earth elements
paresis
20. NYSVMS Facility Accreditation Standards
somatic damage
NYS Public Health Law #225
black
idiopathic
21. With the heel effect - more x-rays tend to be in the beam toward this end of the tube
non-screen
kVp
cathode
genetic damage
22. Tilting of the tube or grid is one reason for
back scatter
more x-rays produced
slow
grid cutoff
23. There are......intensifying screens within a cassette
2
fluoroscopy
true
thoracic(caudal) and lumbar
24. The effective focal spot is approximately 1/3 the size of the actual focal spot
true
inverse square law
screens (phosphor layer)
10 cm
25. The type of collimator that we have here
grid cutoff
screens (phosphor layer)
lines per centimeter
adjustable lead shutters
26. What specific part of the eye is cloudy with a cataract
kVp
1/30
latent image
lens
27. Is responsible for the number or quantity of x-rays
mAs
visible light
reflective layer
rapidly dividing
28. A type of electromagnetic radiation which have a shorter wavelength than visible light
x-rays
potter-bucky diagram
14 x 17
whiter
29. If the x-ray tube is not 36-40 inches from the grid - this is called the
0.25mm
grid cutoff
medium or par
santes' rule
30. Must be radiolucent
intensifying screens
film cassette
inverse square law
screens (phosphor layer)
31. What spinal problem do doberman's get
caudal border of scapula
wobblers syndrome
reflective layer
line focus principle
32. If perforation is suspected - what compound do we use when radiographing
true
light source
paresis
iodine
33. If there's bone in the way of an x-ray -. those parts would be
adjustable lead shutters
white
whiter
milliamperage
34. Film with: high detail - minimal graininess - increased exposure
slow film
kVp
latent image
10 cm
35. Loss of movement in legs (front and/or back)
thoracic(caudal) and lumbar
quantum mottle
paralysis
2.5
36. They don't move - they're found in dental units and portable units - cannot withstand the heat produced from large units
10 cm
rapidly dividing
stationary anode
3cc/#
37. What type of films need a lot more x-ray exposure and more time to expose them
non-screen
kVp or mAs
focal spot
grid efficiency
38. As this increases - the intensity of the x-ray beam decreases - so the beam intensity increases - and the mAs must decrease to compensate
FFD
screen film
paresis
wobblers syndrome
39. Less forgiving - high contrast - cannot tolerate changes in exposure or processing
narrow latitude film
15
cathode and anode
secondary
40. Dislocations or separations
40
luxations
2
true
41. A layer of intensifying screen that reflects the light from the phosphor layer toward the film
reflective layer
light source
caudal border of scapula
aluminum
42. Monitors personal exposure to radiation
dosimeter
anode
cathode
intensifying screens
43. Pigments tend to decrease the lateral spread of light so there is increased detail
non-screen film
phosphor layer dyes
decrease scatter radiation
collimator
44. Is the most common artifact in radiography
lead cone and adjustable lead shutters
movement
non-screen film
rare earth elements
45. Is on the anode and is angled at approximately 20 degrees from vertical
focused and unfocused or parallel
non-screen
focal spot
intensifying screens
46. Is the density difference between 2 adjacent areas on a radiograph
quantum mottle
contrast
santes' rule
latent image
47. Increase what value to penetrate thick body parts
0.25mm
inversely proportional
mAs
kVp
48. Infection of a disk - or bone near it
diskospondylitis
scatter radiation
fast film
15% rule for kVp
49. Can cause damage to living cells through the process of excitation or ionization of electrons in the orbits around atoms
somatic damage
fixer
x-rays
highest mA and smallest time fraction
50. Is determined by the ratio of the height of the lead strips to the distance between them
grid efficiency
non-screen film
unexposed AgBr
cathode