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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. The x-ray machine we've been using has a rotating anode
true
light source
mAs
density
2. Film with: high detail - minimal graininess - increased exposure
15% rule for kVp
10
increase scatter
slow film
3. An abdominal radiograph should be taken at the peak of expiration
10
non-screen film
true
collimator
4. What type of cystogram uses air and hypaque
primary
10 cm
double contrast
higher mA
5. These cells are the most sensitive to radiation
grid cutoff
rapidly dividing
non-screen film
rotating anode
6. The tendency of a luminescent compound to continue to give off light after x-radiation has stopped
afterglow
false
0.25mm
phosphor layer dyes
7. Aluminum filter
decrease scatter radiation
0.25mm
lead cone and adjustable lead shutters
idiopathic
8. Screen speed is.....to the exposure required to cause it to flouresce
inversely proportional
false
15% rule for kVp
grey
9. MAs for ANY part - when using a grid 3x= ?
15
inflammation an granuloma
secondary
15 cm
10. Grid helps reduce the amount of......
scatter radiation
dosimeter
non-screen
screen film
11. When the density difference is great - there is
high contrast
grid cutoff
x-rays
sensitive cells
12. Must change if the FFD changes
mAs
0.5mm
focused and unfocused or parallel
anode
13. Dislocations or separations
luxations
direct relationship
non-screen
supercoat
14. This is used to take 'real-time' radiographs - used a lot in horses
false
fluoroscopy
slow film
false
15. If perforation is suspected - what compound do we use when radiographing
caudal border of scapula
cathode
iodine
higher mA
16. Means more electrons will be released from the filament and directed at the anode
genetic damage
false
higher mA
slow
17. Must increase.....to compensate for x-ray absorption by the grid. (we triple our mAs)
grid cutoff
kVp or mAs
hypaque
no contrast
18. The electrical current sent through the filament to cause this electron release is called
AgBr
milliamperage
mAs
grid cutoff
19. What is the term for an unknown cause
idiopathic
heel effect
nucleus pulposis
grid focus
20. What type of film has the x-rays directly cause the latent image to be formed
non-screen
calcium tungstate
focal spot
focal film distance
21. Why do we not give atropine with a contrast radiograph
stops peristalsis
contrast
cathode
diskospondylitis
22. What is the name for the cartilage flap in the shoulder joint that has broken free and is floating around in the joint fluid
5
joint mouse
non-screen film
anode
23. Between density and mAs
direct relationship
Maximum Permissible Dose
kVp
focal spot
24. They don't move - they're found in dental units and portable units - cannot withstand the heat produced from large units
stationary anode
collimator
contrast
focal film distance
25. If the grid is stationary - more lines that are finer are less apt to show up on a radiograph - this is called....
lines per centimeter
true
potter-bucky diagram
paresis
26. What is the term for a negative contrast cystogram where we inject air
pneumocystogram
0.5mm
nucleus pulposis
back scatter
27. Measures the power of penetrability (quality) of the x-rays produced
inversely proportional
paresis
film cassette
kVp
28. Is influenced by quantity of x-rays(mAs) - quality of x-rays (kVp) - type and thickness of tissue being x-rayed
stationary and rotating
false
density
inversely proportional
29. NYSVMS Facility Accreditation Standards
sensitive cells
NYS Public Health Law #225
cathode filament
whiter
30. The 2 types of collimators are
rare earth elements
adjustable lead shutters
lead cone and adjustable lead shutters
phosphor type
31. Sheets of luminescent phorphor crystals on a cardboard or plastic base
decrease scatter radiation
intensifying screens
whiter
reflective layer
32. Outer layer of disk ( dries out and cracks and causes disk to herniate)
annulus fibrosis
false
silver halide
15 cm
33. MAs for extremities
reflective layer
mAs
15 cm
5
34. What is the term for the spotty appearance on the film due to the large crystals in the screens
false
movement
quantum mottle
grid efficiency
35. If barium leaks into the abdomen or lungs - it can cause what
medium or par
FFD
inflammation an granuloma
visible light
36. This number in santes' rule refers to the distance the x-ray tube is from the x-ray film
40
x-rays
white
4 ft
37. For bladder cystography - we use what contrast material instead of barium
hypaque
fast
cathode
grid cutoff
38. If you use an mA of 300 - What time fraction must i use to get an mAs of 10?
14 x 17
1/30
40
movement
39. Longer wavelengths of electromagnetic radiation have more penetrating power
arthritis
alopecia
sensitive cells
false
40. When processing film - the black areas are made of
decrease scatter radiation
metallic silver
wobblers syndrome
screens (phosphor layer)
41. What needs to have high levels of x-ray absorbtion
decrease scatter radiation
white and black are reversed
contrast
screens (phosphor layer)
42. X-ray machines come with a set one - we cannot adjust it
true
focal spot
screen film
high contrast
43. Less forgiving - high contrast - cannot tolerate changes in exposure or processing
narrow latitude film
true
santes' rule
focal spot
44. Loss of movement in legs (front and/or back)
radiographic detail
paralysis
intensifying screens
true
45. Is on the anode and is angled at approximately 20 degrees from vertical
6 ft
decrease scatter radiation
white
focal spot
46. We are supposed to use a grid if the abdomen is greater than or equal to......
screens (phosphor layer)
10 cm
decrease scatter radiation
false
47. Increase mAs and kVp in order to...
grid cutoff
caudal border of scapula
increase density
density
48. This is inversely proportional to screen speed
radiographic detail
phosphor type
grid focus
collimator
49. This stage of pregnancy is the most dangerous for the fetus
phosphor layer dyes
scatter radiation
unexposed AgBr
first trimester
50. Types of cell damage
genetic and somatic
14 x 17
cathode and anode
intensifying screens