Radiation Protection Word Scramble
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| Question | Answer |
| Biological Effects of Radiation | Random may or may not result in biological changes. |
| True or False There is no way to predict which cells will be affected by irradiation? | True |
| Negative effects of radiation detectable only after time and in the form of a different disease is called? | Latent Period |
| What is Radiation? | Form of energy part of electromagnetic spectrum made up of units of energy called photons |
| True or False Photons have no mass or weight | True |
| Photons travel in... | Wave motion differentiated by wavelength |
| Electromagnetic Radiations with long wave lengths are | Low-energy radiations can travel great distances but little penetrating power. |
| Ionizing Radiation | Shorter wavelength, higher penetrating power |
| True or False Ionizing radiation cannot displace electrons in an atoms orbit leaving atom charged and ionized. | False |
| Linear dose-response relationships | Dose and response are directly proportional to each other. |
| For Threshold-Dependent linear relationship | radiation must reach minimal amount before negative affects |
| For Linear non threshold dose-response | no response to dose until certain level reached. |
| Linear non threshold curve describes | describes relationships b/w radiation dose & the occurrence &induced cancers & genetics effects. |
| Linear non threshold curve effects considered | random or stochastic and no predictable dose for occurrence. |
| Non Threshold causes | Negative Effects |
| Linear non threshold curve used in prescribing | Radiation Protection |
| non linear dose response | dose and response are not directly proportional |
| non linear curve is the non linear S curve also called | Sigmoid Curve |
| non linear or sigmoid curve need | great amount of radiation before effect is seen and small amounts there after. |
| Non-Stochastic or predictable | non linear threshold curve or sigmoid curve |
| Dose-response relationships describe | amount of radiation applied and biological effect and described as linear or non linear |
| Linear relationship means | Biological effect is directly proportional. |
| Term Threshold is applied to | Linear and non linear relationships to define the dose below which no negative effects of radiation are detected. |
| Lethal dose of radiation that will result in death of 50% of the population within 30 days of exposure is called | LD 50/30 |
| Lethal Dose for humans | 250-450 rad |
| 3 major categories of radiation sickness | Hematopoietic syndrome, gastrointestinal syndrome, and central nervous system syndrome |
| Hematopoietic Syndrome occurs at | lowest dose ( 100-1000) rad |
| most sensitive to radiation exposure | Hematopoietic ( causes decrease in red blood cells clotting cells resulting in decrease in immune response and blood clotting ability |
| individual may die with 30 days | from secondary disease or Hemorrhage |
| Gastrointestinal syndrome occurs | at 600-1000 rad causes abnormal function of GI |
| experience nausea, vomiting, ulcerations, and hemorrhage and may die within 10-14 days | Gastrointestinal syndrome |
| confusion,disorientation,ataxia and increase in intracranial pressure and seizures,agitation,and shock | Central Nervous System syndrome ( death usually within 14-36 hrs) |
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