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VET 246 Week 1

Radiation safety

QuestionAnswer
X-rays ____ the water in our bodies which produces free ____ ionize; radicals
____ is highly susceptible to radiation DNA
Stochastic effect No immediate effects but internal damage may show up later Ex. Cancer, Sterility, Hyperthyroidism, Hypothyroidism, Cataracts
Deterministic effect Portions of DNA may be compromised enough to show obvious damage Eg. Sunburn
The main concern with radiation is _____ effects latent
The primary culprit that affects healthcare workers is ____ radiation Scatter
X-rays travel in a ____ line straight
_ to __ weeks of pregnancy are the most vulnerable. 2 to 10
Biologic amplification Once a cell develops a mutation, every cell that divides from it also has the mutation.
Higher energy levels penetrate _____ and lower energy levels penetrate only _____ (kVp) deeper; superficially
Linear Energy Transfer The ability to transfer energy
The greater the LET, the more ___ is being transferred to the surrounding soft tissue (more radiation) energy
___ have low LETs with higher penetrability x-rays
______ has high LETs with lower penetrability scatter radiation
More density = More x-ray absorption
When the x-rays hit the film it turns ____ after processing black
When x-raying bone, the rays are ___ absorbed
ALRA As low as reasonably achievable
Radiation doses should be as __ as possible. low
Protection 3 cardinal rules: - Time - Distance - Shielding
Inverse Square Law The further from the source of radiation the safer you are (less radiation) , the closer you are to the source the more unsafe you are. (more radiation)
Leaded aprons protect up to ___ kV 125
Thermoluminescent dosimeters Register a charger over time
Dosimeter measure exposure to radiation
Created by: Acraft02
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