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RAD 201 exam 2

QuestionAnswer
Define Linear Energy Transfer (LET) How much energy deposits
Define Relative Biologic Effectiveness (RBE) Compares effectiveness of different radiation
Define Oxygen Enhancement Ratio (OER) Shows how oxygen effects radiation damage
Where does ionizing radiation start in a living organism? Molecular level
Define the law of Bergoine and Tribondeau Radiosensitivity of cells is directly proportionals to their reproductive activity and inversely proportional ro their degree of differentiation
Define Somatic effects Effects upon the body that as irradiated
Define Genetic effects Effects upon future generations due to irradiated of germ cells of previous generations
Early vs Late somatic effects Early = hours , days, weeks Late = months, years
Define Acute Radiation Syndrome Whole body dose of 6 Gyt in a short period of time (multiple organ systems effected)
What are the types of dose related syndromes? 1. Hemopoietic (1-10Gyt) 2. Gastrointestinal (6-10Gyt) 3. Central Nervous System (50Gyt or more)
What are the major response stages of ARS? 1. Prodromal 2. Latent period 3. Manifest illness 4. Recovery or death
What is the Lethal Dose? LD = 50/30 aka lethal to 50% of the exposed population within 30 days
Define Radiodermatitis inflammation of the skin due to radiation (scarring , fibrosis)
Define Desquamation Flaking and shedding of the epidermis
Define epilation Hair loss 1. temporary 3Gy 2. permanent 7Gy
Created by: Aaliyah602
 

 



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