SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
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. Radiograph of a dogs skeleton has a long scale of contrast
false
inversely proportional
no contrast
focal spot
2. Types of cell damage
spondylosis
high contrast
film cassette
genetic and somatic
3. 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
intensifying screens
2.5
more light
cathode filament
4. Must be radiolucent
fast
film cassette
stationary and rotating
5
5. Radiographic signs dont always agree with what
clinical signs
kVp
cassette
primary
6. Loss of movement in legs (front and/or back)
3cc/#
wide latitude film
clinical signs
paralysis
7. The greater the number of electrons released
collimator
high contrast
medium film
the higher the mA
8. Pigments tend to decrease the lateral spread of light so there is increased detail
false
radiograph
NYS Public Health Law #225
phosphor layer dyes
9. 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
phosphor type
kVp
false
10. Is the measurement for the maximum energy available at that setting
SOP
non-screen
diskospondylitis
peak kilovoltage
11. Film with silver crystals that is more sensitive to fluorescent light emitted from intensifying screens than to ionizing radiation
more light
increase density
electrons
screen film
12. Screens are classified according to
focal spot
true
kVp
speed
13. This is inversely proportional to screen speed
non-screen
radiographic detail
0.5mm
screen film
14. The focused grid is upside down - is one reason for
0.25mm
grid cutoff
density
fogging
15. The distance from the x-ray tube to the x-ray machine is the SID (source image distance) - or the FFD (also known as....)
focal film distance
fast film
short scale of contrast
rapidly dividing
16. Film with: ultra speed - grainier image - less exposure needed
arthritis
mAs
0.5mm
fast film
17. As this increases - the intensity of the x-ray beam decreases - so the beam intensity increases - and the mAs must decrease to compensate
false
true
FFD
Maximum Permissible Dose
18. If the kVp is too low
true
no contrast
cathode
paralysis
19. A device that moves the grid back and forth under the table. it helps to prevent grid lines from showing
fast
density
genetic and somatic
potter-bucky diagram
20. Improper centering of grid is one reason for
grid cutoff
focal spot
black
cathode
21. With this procedure - no x-ray film is involved at all
fast film
NYS Public Health Law #225
cathode
fluoroscopy
22. If you use an mA of 300 - What time fraction must i use to get an mAs of 10?
1/30
kVp
non-screen
screens (phosphor layer)
23. Bone - lymphatic cells - epitheilial - and hemopoietic cells are also what kind of cell?
4 ft
true
sensitive cells
non-screen film
24. KVp=(2x thickness of body part in cm) + 40
Warning
: Invalid argument supplied for foreach() in
/var/www/html/basicversity.com/show_quiz.php
on line
183
25. What type of film gives more detailed radiographs but more exposure to everyone involved? (commonly used as dental film - or for extremities)
0.5mm
non-screen
long scale of contrast
non-screen film
26. AgBr + x-rays =
4 ft
non-screen film
kVp
false
27. These screens are the most common type - they give good resolution with relatively low exposure
increase scatter
phosphor layer dyes
medium or par
kVp
28. Faster screens/less detail; slower screens/more detail
large crystals - small crystals
focal spot
kVp
fast
29. When more electrons hit the focal spot on the anode
secondary
grid cutoff
more x-rays produced
15% rule for kVp
30. Outer layer of disk ( dries out and cracks and causes disk to herniate)
first trimester
cathode
annulus fibrosis
cassette
31. A layer of intensifying screen that reflects the light from the phosphor layer toward the film
reflective layer
14 x 17
false
x-rays
32. Rotating anode
grid
NYS Public Health Law #225
decrease scatter radiation
medium film
33. Is responsible for the number or quantity of x-rays
NYS Public Health Law #225
mAs
more x-rays produced
focused and unfocused or parallel
34. We should always try and stay How many feet from our x-ray machine
no contrast
15 cm
6 ft
screens (phosphor layer)
35. Most commonly used film - compromise between graininess and speed (detail)
narrow latitude film
false
2.5
medium film
36. The effective focal spot is only 1/3 the size of the actual focal spot. this is called the
secondary
true
density
line focus principle
37. They don't move - they're found in dental units and portable units - cannot withstand the heat produced from large units
stationary anode
decrease scatter radiation
intensifying screens
radiograph
38. Calcium tungstate - rare earth elements
potter-bucky diagram
phosphor type
density
0.25mm
39. Between density and kVp
no contrast
large crystals - small crystals
genetic damage
indirect relationship
40. If the grid is stationary - more lines that are finer are less apt to show up on a radiograph - this is called....
erythema
grid cutoff
10 cm
lines per centimeter
41. Safe Operating Procedures
rapidly dividing
kVp or mAs
screens (phosphor layer)
SOP
42. X-ray gloves have to have....of lead equivalent
non-screen film
rapidly dividing
fixer
0.5mm
43. These cells are the most sensitive to radiation
no contrast
grid focus
osteomyelitis
rapidly dividing
44. Another result of the 20 degree angling
non-screen
grid efficiency
heel effect
first trimester
45. Distance from the grid to the x-ray tube (36-40 inches)
lead cone and adjustable lead shutters
screen film
alopecia
grid focus
46. Screen speed is.....to the exposure required to cause it to flouresce
cathode and anode
inversely proportional
15
AgBr
47. If there's far or muscle in the way of an x-ray - those parts would be
grey
cathode and anode
medium film
paralysis
48. Is only 1/3 the size of the actual focal spot
cathode
increase density
false
effective focal spot
49. Is influenced by quantity of x-rays(mAs) - quality of x-rays (kVp) - type and thickness of tissue being x-rayed
screens (phosphor layer)
scatter radiation
density
dosimeter
50. Amount of radiation a person can recieve in a calendar year
first trimester
Maximum Permissible Dose
latent image
stationary anode