Module 3 Flashcards
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
35 lbs (25-45lbs)
Reciprocity law failure begins to occur when exposure times exceed ________ second(s).
0.5
0.75
1
2
1
To reduce eye strain and prevent glare, a ________ tint is added to the mammographic film base.
green
blue
red
yellow
blue
A reading of _________ keV’s falls within the range of useful x-rays for mammographic imaging.
15
20
25
30
20
Mammography magnification usually is set at a factor of ________.
- 5
- 5
- 5
- 5
1.5
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
green; 4
A temperature of _______ degrees F would be safe for a mammographic darkroom.
60
70
80
90
70
Mammographic film processing is controlled by:
- time
- outdoor humidity
- chemical concentration
1 & 2
1 & 3
2 & 3
1, 2, & 3
1 & 3
__________ acts as a hardener in a mammographic processor.
sodium sulfite
potassium bromide
potassium carbonate
glutaraldehyde
glutaraldehyde
The ________ cycle in film processing removes the undeveloped silver halide crystals from the film & hardens the film for storage.
replenishment
fixer
wash
drying
fixer
An advantage of extended processing of mammographic film is that it:
increases contrast
decreases noise
increases resolution
decreases artifacts
increases contrast
_________ 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
guide-shoe marks
If the wash cycle is not functioning properly, the processed films will generally have a ________ tint.
brown
yellow
red
green
brown
Poor film-screen contact that produces artifacts can be caused by:
- dirty screens or old cassettes.
- air trapped within a cassette.
- film loaded incorrectly into the cassette.
1 & 2
1 & 3
2 & 3
1, 2, & 3
1, 2, & 3
Static artifacts on mammographic film occur when:
darkroom temperature is too low
darkroom humidity is too low
the film is expired
cassettes are dirty
darkroom humidity is too low