RT 101- AEC UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

RT 101- AEC UPDATED ACTUAL QUESTIONS AND
CORRECT ANSWERS

Question:
1. what does AEC stand for?
Answer:
automatic exposure control

Question:
2. what is the primary purpose of automatic exposure control in radiography?
Answer:
- to measure the amount of radiation reaching the image receptor
- to terminate the exposure once sufficient radiation has reached the image receptor
- standardize image receptor exposure across different patient sizes

Question:
3. automatic exposure control (AEC) is also commonly referred to as
Answer:
phototiming

Question:
4. which of the following is a benefit of using automatic exposure control (AEC)?
Answer:
- decrease patient dose
- less repeats
- more consistent imaging

Question:
5. using AEC properly results in which of the following outcomes?
Answer:
more consistent images

Question:
6. when using AEC, the radiographer has a major responsibility to
Answer:
choose the correct technique

Question:
7. which of the following statements best describes how AEC contributes to consistency in radiographic
imaging?
Answer:
it terminates the exposure once the correct receptor dose is achieved

Question:
8. which of the following is a direct result of using AEC correctly?

,Answer:
reduced repeat exposures

Question:
9. what is one of the main responsibilities of the radiographer when using AEC?
Answer:
to ensure the correct detector cells are activated

Question:
10. which of the following best summarizes the benefits of AEC?
Answer:
decreased patient dose and more consistent images

Question:
11. what term is used interchangeably with automatic exposure control (AEC)?
Answer:
phototiming

Question:
12. the amount of radiation exposure determined by AEC depends primarily on which of the following?
Answer:
the body part being imaged

Question:
13. how does the AEC system know when to terminate the exposure?
Answer:
when the radiation detection devices have received enough radiation to produce an optimal image

Question:
14. what is the function of the radiation detection devices used in AEC?
Answer:
to convert radiant energy into an electrical current

Question:
15. AEC can ONLY be used with _____ studies.
Answer:
bucky studies (wall bucky or table bucky)

Question:
16. if an AEC exposure results in an image that is too dark, which of the following is the most likely
cause?
Answer:
the selected detector was under a less dense area of anatomy

Question:
17. what happens if the AEC detectors are not properly covered by the anatomy of interest?

, Answer:
the exposure will terminate prematurely or too late, depending on detector coverage

Question:
18. what component of the AEC system detects the amount of radiation reaching the image receptor?
Answer:
photocells or detectors

Question:
19. where are the AEC detectors typically located in a radiographic unit?
Answer:
behind the image receptor within the bucky tray

Question:
20. which of the following statements about AEC use is correct?
Answer:
AEC can only be used with a bucky unit

Question:
21. who determines whether AEC will be used for a particular radiographic exposure?
Answer:
the radiographer

Question:
22. when using AEC, the patient must be positioned so that the anatomy of interest is located
Answer:
directly over the selected AEC detector

Question:
23. what does the AEC section on the control panel allow the radiographer to do?
Answer:
select which detectors are active for the exposure

Question:
24. on the control panel, what parameter does the radiographer still need to set manually when using AEC?
Answer:
kVp

Question:
25. which of the following best describes how AEC determines when to terminate an exposure?
Answer:
when the detectors have received enough radiation to produce an optimal image

Question:
26. when using a manual technique, the radiographer must select which of the following exposure factors?