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Exam 3 - Ethics

Week 10 & 11

QuestionAnswer
The _______ in the retina are stimulated by _______ light; the _______ are stimulated by _______ light. rods; low; cones; bright
The ability of the eye to detect differences in brightness levels is termed ___________. contrast perception
The output phosphor of the image intensifier is composed of ___________________. zinc cadmium sulfide
In mask mode, the ________ image is shown on monitor B, and the ________ image is shown on monitor A. mask; subtracted
Television monitoring allows ________________ to be controlled electronically. both brightness and contrast
The American Cancer Society recommends biannual screening mammograms for all women ____________. age 40 to 49
Breast compression is used to _______ patient dose and ________ focal spot blur. lower; reduce
Screening mammography requires _____ view(s) of each breast, whereas diagnostic mammography requires _____ views. two; two or more
Quality control procedures include measures of __________________. display devices, repeat analysis and image receptor function
About 80% of breast cancer occurs in __________ tissue. ductal
Every dedicated mammography unit is equipped with a ________________. low ratio grid
The power rating for an interventional radiography tube should be at least _____ kW. 100
The focal spot used for magnification of small vessels cannot be larger than ____ mm. 0.3
The most common risk for the angiography patient is ________________. bleeding at the puncture site
Which of the following is an important sweep angle metric? Scan time
An advantage of DRT is to _______________. reduce or eliminate tissue superimposition
During digital radiographic tomosynthesis (DRT), what is the range of the sweep of the x-ray tube? +/– 5 to +/– 25 degrees
A quality control program should include all of the following, except ___________. patient dose
Created by: bmairet
 

 



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