MEDICINE
RADIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Exposure to radiation:
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no matter how small, has the potential to cause harmful biological changes
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has a threshold, below which exposure is entirely safe
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is safer when there is a single, large dose rather than a series of smaller doses
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from a dental x ray machine does not involve particulate radiation and is completely safe
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Explanation:
Detailed explanation-1: -Any exposure to radiation, no matter how small, has the potential to cause biologic changes to the operator and the patient. The dental assistant must have a thorough understanding of the characteristics of radiation to minimize radiation exposure to both the dental patient and the operator.
Detailed explanation-2: -Deterministic effects are usually predictable and reproducible. For example, localized doses to certain parts of the body at increasing levels will result in well-understood biological effects. Some examples of deterministic effects include: Radiation-induced skin burns.
Detailed explanation-3: -The thyroid gland is considered to be the most sensitive organ for radiation induced tumors [26].
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