This is a list of bookmarks to help you continue your CPD from where you last left off. It is updated every time you visit a new page.
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Choose the Single Best Answer (SBA) to the questions below:
1. The basis of optimisation is that the x-ray dose should be:
Well done - ALARP
2. Direct current (DC) x-ray sets
Well done!
More usually around 60kV
3. Direct current (DC) x-ray sets are also known as
Well done!
4. Soft x-rays
No - not completely.
Well done! They are absorbed by the tissues before they reach the film.
5. Modern intra-oral x-ray sets can allow control over
Well done! Older sets usually only allow exposure time control.
6. If a collimated intra-oral x-ray tube is placed further away from the patient
The dose will be spread over a larger area, but still all hit the patient's head.
Well done! Although the total entrance dose is the same, because the beam is now wider, less will be blocked by the lead foil in the film, so the far side of the mouth will receive extra-radiation.
7. For a panoramic set, the dose can be reduced by
Well done! This is the usual method.
8. The optimal film speed for intra-oral radiography is
Well done!
9. Intensifying screens should be used with films for
Well done!
10. Intensifying screens for extra-oral radiographs
Radon is not a rare earth element
Well done!
11. The photo-sensitive layer in film is made of
Well done! Halides include Chloride, Bromide, and Fluoride
12. Extra-oral films should be removed from cassettes immediately because
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