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25 Cards in this Set
- Front
- Back
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H S D R E C B&c L R u C N |
List the order of the systems response to radiation exposure from most sensitive to least sensitive.. |
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Acute radiation syndrome |
Sickness that occurs in humans after large whole body dose of radiation received in a short time. |
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Prodromal |
First stage, happens after hour of 1 gray or more.
Nausea, committing,
Leukopenia |
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200-300 rad |
Sub lethal , recovery in 3 months |
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Super lethal |
No recovery after 600-1000 rad |
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Death in 3-10 days. Infection, Hermitage, dehydration |
Gastrointestinal syndrome death in how many days after damage to skin and intestine cells? |
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3-4 Gy . 6 gy death in all. 8.5 recovery with medz |
LD 50/30 |
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LD, |
Measure how lethal a dose is |
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90% repair over time |
Damage from radiation |
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Carcinogenesis. And embryological effects. |
Stochastic late effects are |
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Deterministic effects. Non-Linear threshold |
Cataractogenesis and nonspecific life span shortening. |
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700 rads |
Cataracts |
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500-600 rads, |
Permanent sterility |
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25 rads |
Decrease in stem cells and lymphocytes |
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Late effects from subelthal dose |
Seen in 10 years. Recovery is 3 months |
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Cataractogenesis |
High probability from 200 rad dose |
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Life span shortening |
Loss of parachymal cells, organ atrophy, fibrosis |
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Teratogenesis |
Birth defects caused by radiation exposure of fetus |
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20 rad, organogenesis |
Fetal abnormalities |
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Preinplanation |
5-15 rad caused embryological death |
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Fetal stage 6 weeks to term |
Skeletal damage. Childhood cancer, sterility |
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3x rate of deformities and abnormalities. Miscarriages, still birth. Premature birth |
Children exposed in ureto at Chernobyl |
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Spontaneous late genetic effects |
Sickle cell anemia. Down syndrome |
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Mutagens |
Increase frequency of mutations |
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Measures effectiveness of causing mutations . 156 rem in humans is amount of radiation that causes 2x mutations |
Doubling dose concept |
