WorksheetsAutomatic Exposure Control (AEC) Quiz
Total questions: 10
Worksheet time: 5mins
What is AEC similar to, according to the instructor's analogy?
Using a blender
Using a microwave
Driving a manual car
Driving an automatic car
What does the radiographer select when using AEC?
KV and Ma
Seconds and time
Photo cells and backup timer
Exposure duration
What is the function of the photo cells in AEC?
To select KV and Ma
To position the patient
To set the backup timer
To monitor radiation exposure
What happens if the backup timer is not set correctly?
The KV and Ma will not be selected
The photo cells will not activate
The exposure will terminate early
The patient may be overexposed
What should be selected for a PA chest x-ray to avoid overexposure?
The two outer cells
The center cell
The backup timer
The KV and Ma
What analogy is used to explain the difference between lung tissue and bone in x-ray imaging?
Lungs as a sponge and bone as a strainer
Lungs as a strainer and bone as a sponge
Lungs as a cup and bone as a tray
Lungs as a sensor and bone as a photo cell
What is the purpose of the backup timer in AEC?
To monitor the amount of radiation
To position the patient correctly
To select the correct photo cells
To protect the patient from overexposure
What can result from improper positioning of the patient in AEC?
Underexposed or overexposed images
Correct exposure every time
Automatic adjustment of KV and Ma
No effect on the image
What should be done for larger patients to ensure proper exposure?
Select different photo cells
Use manual exposure control
Select different KV and Ma
Adjust the backup timer
What is the main benefit of using AEC in radiology?
Increased radiation exposure
Manual control of exposure time
Automatic termination of exposure
Reduced need for patient positioning
