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Chapter 5 Quiz

Essentials of Radiation Biology and Protection 2nd Edition Chapter 5

What is defined as a bunch of medical science that deals with the incidence, distribution, and control of disease in a population? Epidemiology
The following populations are used as sources of data on the incidence of radiation-induced cancer: Atomic Bomb Survivors, Medically Exposed Patients, Occupationally Exposed Personnel
Limitations on epidomiologic studies include the following: Faliure ot control experimental group for other known carcinogens, Insufficent observation periods which permit full demonstration of cancers with long latent periods, Using improper control groups, Deficient of incorrect health records
What model explains how age at the time of radiation exposure may influence the cancer risk estimate: Relative or Multiplicative Risk Model
What model estimates a continual increase in risk that is independent of the spontaneous age specific cancer risk at the time of exposure? Absolute or Additive Risk Model
What dose-response curve is utilized for radiation protection guidelines whne estimating the overall cancer risk from diagnostic and occupational exposures? Linear, Nonlinear
The fomrula of relative risk is: Observed Cases/Expected Cases
The formula for excessive risk is: Observed Cases - Expercted Cases
Absolute risk states in terms of: Nubmer of Cases/1 million person/rad/year
Radiation-induced malignancies include: Leukemia and Skin Carcinoma, Thyroid and Breast Cancer, Osteosarcoma, Lung Cancer
The relative risk for development of radiation-induce leukemia is approximately: 1.5
What is the approximate latent period for radiaton-induced leukemia? 4-7 years
What population has not shown an increased incidence of radiation-induced leukemia? American Radiographers
Radiation-induced leukemia is judged to be: Linear, Nonthreshold
What type of radiation-induced cancers demonstrates a threshold dose-response relationship? Skin
What is the appoximate latent period for radiation-induced skin carcinoma? 5-10 years
Radiation-induced thyroid cancer is judged to be: Linear, Nonthreshold
The absolute risk for radiation-induced breat cancer is approximately: 6 Cases/1 million persons/rad/year
Osteosarcoma follows which dose-response relationship? Linear, Quadratic
The absolute risk for radiation-induced osteosarcoma is approximately? 0.11 Cases/1 million persons/rad/year
Radiation-induced lung cancer follows which dose-response relationship? Linear, Nonthreshold
_____ is an average calculated from gonadal dose received by the entire population: Genetically Significant Dose(GSD)
The dose of radiation required per generation to double the spontaneous mutation rate: Doubling Dose
An embryo's response to irradiation depends on: Total Dose, Rate of Dose, Quality of Radiation, Stage of Development
When does the greatest radiation hazard to fetus exist? First Trimester
What is most likely after irradiation in utero if the radiation is received during the organogenesis stage? Congenital Abnormalities
What describes radiation damage that increases the probablility of causing a late effect but will not increase the severity of the effect: Stochastic
The annual effective limit for the fetus of an occupational is: 0.5 rem
Created by: Dallas1856