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Radiology > Safety > Flashcards

Safety Flashcards

0
Q

What are four possible outcomes when living tissue is exposed?

A

Pass through no effect
Repairable cell damage
Non repairable cell damage
Kill cell

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1
Q

What is secondary scatter?

A

Radiation that bounces away

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2
Q

How do X-rays damage living tissue?

A

Imparting ionizing radiation

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3
Q

What are four somatic radiation injuries?

A

Skin burns, cater acts, anemia, cancer

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4
Q

What are 3 genetic birth defects from radiation?

A

Skeletal/dental formation, mental retardation, microopthalmia

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5
Q

What cells are most commonly effected by radiation?

A

Rapidly reproducing cells

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6
Q

What are three sources for X-rays?

A

X-ray machines, nuclear power plants, background

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7
Q

What do RADs measure?

A

How much ionizing radiation is absorbed by an individual

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8
Q

One gray unit is how many RADs?

A

100

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9
Q

What do REMs measure?

A

Amount of ionizing radiation and its instability to cause tissue damage

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10
Q

What does the sievert express?

A

Radiation dose equivalent

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11
Q

One av is how many Rems?

A

100

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12
Q

What devices are used to measure radiation?

A

Dosimeters

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13
Q

How can X-rays be produced in a lab?

A

Directing high speed electrons at a target

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14
Q

What is radiation exposure limits?

A

MinimUm safety standards set by the federal government

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15
Q

What is the minimum permissible dose?

A

Amount of radiation an individual may receive without suffer ice appreciable body injury during a lifetime

16
Q

What is the MPD dose value?

A

5rem/year or 0.05 av/year

17
Q

What is a pregnant woman’s MPD?

A

0.5ren

18
Q

What are the 5 physical properties of X-rays?

A 
Penetrate materials that absorb or reflect light
Travel in a straight line
Cause certain substances to fluoresce
Chemical changes on film
Injury to living tissue

Radiology (8 decks)

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