Module 3 Flashcards

1
Q

Which of the following compression pressures is within the range recommended by the Mammography Quality Standards Act (MQSA)?

10 lbs
20 lbs
35 lbs
55 lbs

A

35 lbs (25-45lbs)

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2
Q

Reciprocity law failure begins to occur when exposure times exceed ________ second(s).

0.5
0.75
1
2

A

1

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3
Q

To reduce eye strain and prevent glare, a ________ tint is added to the mammographic film base.

green
blue
red
yellow

A

blue

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4
Q

A reading of _________ keV’s falls within the range of useful x-rays for mammographic imaging.

15
20
25
30

A

20

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5
Q

Mammography magnification usually is set at a factor of ________.

  1. 5
  2. 5
  3. 5
  4. 5
A

1.5

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6
Q

The safelight filter in a mammography darkroom must correspond to ______ light-sensitive film and must be located at least _______ feet above the work space.

red; 4
green; 4
blue; 3
yellow; 3

A

green; 4

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7
Q

A temperature of _______ degrees F would be safe for a mammographic darkroom.

60
70
80
90

A

70

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8
Q

Mammographic film processing is controlled by:

  1. time
  2. outdoor humidity
  3. chemical concentration

1 & 2
1 & 3
2 & 3
1, 2, & 3

A

1 & 3

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9
Q

__________ acts as a hardener in a mammographic processor.

sodium sulfite
potassium bromide
potassium carbonate
glutaraldehyde

A

glutaraldehyde

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10
Q

The ________ cycle in film processing removes the undeveloped silver halide crystals from the film & hardens the film for storage.

replenishment
fixer
wash
drying

A

fixer

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11
Q

An advantage of extended processing of mammographic film is that it:

increases contrast
decreases noise
increases resolution
decreases artifacts

A

increases contrast

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12
Q

_________ most commonly appear on the leading or trailing edge of a mammogram following processing and are spaced about 1” apart.

roller marks
delay streaks
chatter bands
guide-shoe marks

A

guide-shoe marks

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13
Q

If the wash cycle is not functioning properly, the processed films will generally have a ________ tint.

brown
yellow
red
green

A

brown

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14
Q

Poor film-screen contact that produces artifacts can be caused by:

  1. dirty screens or old cassettes.
  2. air trapped within a cassette.
  3. film loaded incorrectly into the cassette.

1 & 2
1 & 3
2 & 3
1, 2, & 3

A

1, 2, & 3

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15
Q

Static artifacts on mammographic film occur when:

darkroom temperature is too low
darkroom humidity is too low
the film is expired
cassettes are dirty

A

darkroom humidity is too low

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16
Q

The most common technical problem in mammography is:

overexposure of dense tissue
underexposure of dense tissue
overexposure of fatty tissue
underexposure of fatty tissue

A

underexposure of dense tissue

17
Q

Noise can be caused by:

  1. overexposure
  2. fast image receptors
  3. extended processing

1 & 2
1 & 3
2 & 3
1, 2, & 3

A

2 & 3