
AEC 8/19
Quiz
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Science
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University
•
Practice Problem
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Medium
+6
Standards-aligned
Leah Lorenz
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35 questions
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1.
MULTIPLE CHOICE QUESTION
30 mins • 1 pt
Which of the following best explains why dense breast tissue leads to higher false negative rates in 2D digital mammography?
Dense tissue absorbs more radiation, increasing patient dose
Dense tissue masks underlying lesions, reducing lesion conspicuity
Dense tissue increases scatter, leading to higher false positives
Dense tissue prevents microcalcification detection entirely
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Digital Breast Tomosynthesis (DBT) improves detection of breast cancer compared with standard 2D mammography primarily because it:
Uses higher energy X-rays to penetrate dense tissue
Eliminates the need for small focal spot size in imaging
Requires contrast injection to highlight suspicious lesions
Produces 3D reconstructed images, reducing tissue overlap
Tags
NGSS.HS-PS4-5
3.
MULTIPLE CHOICE QUESTION
30 mins • 1 pt
A cyst on B-mode ultrasound typically shows which posterior feature?
Acoustic Shadowing
Posterior Enhancement
No posterior effect
Mixed
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is fluid on ultrasound?
Hyperechoic
Anechoic
Hypoechoic
Isoechoic
5.
MULTIPLE CHOICE QUESTION
30 mins • 1 pt
Which of the following is the correct order in which gamma rays passes through the layers/camera of a SPECT machine?
Photomultipliers-> Detector-> Collimator-> Camera
Detector-> Photomultipliers-> Collimator->Camera
Collimator->Detector-> Photomultipliers-> Camera
Camera-> photomultipliers-> Detector-> Collimator
Tags
NGSS.HS-PS4-5
6.
MULTIPLE CHOICE QUESTION
30 mins • 1 pt
Which of the following answer choices would improve the contrast of the SPECT image?
Narrowing energy window around photopeak
Widening energy window around photopeak
Increase the number of collimator holes
Increase the thickness of the collimator
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
It is the height of the Covid-19 pandemic and ventilators are in short supply. Two hospitals are in need of them. The first is in a wealthy neighborhood with a modest amount of patients but is able to pay top dollar for ventilators. The second is in a less-wealthy neighborhood with a high patient volume but has less funds to pay for the ventilators. If you were to give the ventilators to the second hospital because of their higher patient volume, what ethical principle would your decision be based on?
Beneficence
Justice
Deontology
Utilitarianism
Tags
NGSS.HS-ETS1-1
NGSS.HS-ETS1-3
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