RADT 146- Intro- Unit 6- Radiation Protection (1) exam with verified solutions

Radiation levels in ___ studies are relatively ___ - correct answer ✔diagnostic,
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low
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Radiation levels in diagnostic studies are - correct answer ✔relatively low
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Even though radiation levels in diagnostic studies are low , radiation received by
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the patient and radiographer is still a - correct answer ✔cause for concern
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Whose responsibility is it to protect the patient as well as themselves from
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excessive radiation exposure - correct answer ✔radiographer
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Even though the radiation levels are low, how can it still affect the patient or
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the radiographer - correct answer ✔the longer the patient or the radiographer
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is in that type of environment, the more prone they are to getting adverse
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reactions from radiation
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Over ___% of the average population exposure from ________ come from
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___________of radiation - correct answer ✔90%. man made ionizing radiation,
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medical uses of radiation
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What is man made radiation - correct answer ✔x rays
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plain and simple/ /

,Is the sun a type of man made radiation - correct answer ✔no
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What are the risks of radiation, it can cause ___ and ___ effects - correct answer
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✔can cause biological and genetic effects
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It has been proven that the benefits of receiving x-rays ___________ - correct
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/answer ✔outweigh those the biological and genetic risks.
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Can one x-ray pinpoint a medical problem that otherwise might be missed by
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the human eye - correct answer ✔yes
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Greater than ____% of radiation can be _____ without compromising the
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benefits - correct answer ✔30, eliminated
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How can 30% or more of radiation be eliminated without compromising the
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benefits - correct answer ✔1. improvements in modern x-ray equipment
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2. accessories
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3. radiation safety precautions
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Repeat radiograph- Variables in producing a high quality radiograph - correct
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answer ✔1. proper patient positioning
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2. proper selection of exposure factors
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3. proper use of collimation
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, Repeat radiograph- Poor radiograph - correct answer ✔1. repeat radiograph,
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patient re-exposed
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2. patient exposure is doubled, receiving unnecessary exposure
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What happens when you decrease the field size, what happens when you
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decrease it too much - correct answer ✔increases image quality, if you
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collimate too much it may cut off an anatomical structure
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Film repeats - correct answer ✔1. error in exposure factors- over or under
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exposure
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2. patient (part) positioning
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CR repeats - correct answer ✔1. patient (part) positioning
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Is the exposure factor eliminated with CR? - correct answer ✔yes
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Keeping repeat rates low will (4) - correct answer ✔1. decrease patient
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exposure
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2. reduce wear and tear of x-ray tube
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3. decrease the cost of processing chemicals
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4. increase productivity by decreasing patient time in exam room
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Pediatric radiography- radiation dose for pediatrics are generally ___ than dose
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received by adults of the same study - correct answer ✔lower or less than
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