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RDA WRITTEN EXAM - DENTAL RADIATION SAFETY QUESTIONS WITH CORRECT ANSWERS
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RDA WRITTEN EXAM - DENTAL RADIATION SAFETY QUESTIONS WITH CORRECT ANSWERS
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RDA WRITTEN EXAM - DENTALRADIATION SAFETY QUESTIONS WITH
CORRECT ANSWERS
What is the use of the lead apron? - answer-ensures that the reproductive areas are
covered and protected from radiation exposure
What is the use of thyroid collar? - answer-to protect the thyroid gland from the effects
of radiation exposure
What are the 4 patient protection techniques dental assistants should be knowledgable
in? - answer-proper technique
Film speed
Exposure factors
Film holding devices
What are film holding devices and use? - answer-aka image receptor holding devices
Hold film or sensor in place
Keeps hands and fingers free of radiation exposure
Ex. Snap a rays, disposable bite blocks, easy grip, paper bitewing tabs, xcp rinns
What are film speed? - answer-refers to amount of radiation needed to create image
Classified by letters d, e, and f for intraoral
F speed is fastest film > less radiation exposure
What are exposure factors? - answer-refer to the settings on the x-ray unit
Placing the kvp, ma, and time setting to correct level for adults and children
Settings adjusted to film and patient size
What are the techniques to minimize exposure during radiation procedures? - answer-
use proper techniques
If taken properly no retakes needed
Radiation - answer-waves of energy emission through space and or material
Ionizing radiation - answer-the harmful effects of x-rays in humans
The following is expose to more radiation when taking dental xrays - answer-skin-direct
beam of radiation
Lens of the eye- cloudiness to the lens of the eye called cataracts
Thyroid gland- in patients neck
Bone marrow- in mandible and skull, can result in leukemia
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