Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Ch 7 & 8 Rad Protect

Early/Late Radiation effects on organ systems

Somatic & Genetic Damage Factors (4) 1. The quanitity of ionizing radiation to which the subject is exposed 2.The ability of ionizing radiation to cause ionization of human tissue 3.The amount of body area exposed 4.The specific body part exposed
Somatic Effects When the organisms exposed to radiation suffer biological damage
Non-stochastic effects AKA, deterministic effects; If the effects are cell killing and directly related to the dose; appear within min, hrs, days or wks after exposure
Stochastic effects AKA, probabilistic; Late effects that are mutational or randomly occurring
Early somatic effects (11) Nausea, fatigue, erythema, epilation (bald), blood disorder, intestinal disorders, dever, dry and most desquamation, depressed sperm count, temp/permanent sterility, CNS injury
Acute Radiation Syndrome ARS or radiation sickness. Requires large, whole body exposure
3 Dose related syndroms, in order from early to late effects 1. Hematopoietic 2.Gastrointestinal 3.Cerebrovascular
Pondromal Stage of ARS Occurs within hours after a whole body absorbed dose of 1Gy or more is recieved
Pondromal stage symptoms Nausea, vomitting, diarrhea, fatigue, leukopenia
Latent stage dose 1-100Gy
Hematopoietic Stage (dose, Average Survival, Symptoms) 1-10Gy; 6-8wks; (symptoms from previous)decreased in # of red & white blood cells & platlets in circulating blood, hemorrhage, infection
GI stage (dose, average survival, symptoms) 6-10Gy; 3-10days; (symptoms from previous) Loss of appetite, lathargy, electrolytic imblanace & emaciation
Cerebrovascular stage (dose, average survival, symptoms) 5+Gy; Several hours to 3 days; (symptoms from previous) excessive nervousness, confusion, lack of coordination, LOC, disorientation, shock, agitation alernating with stupor, edema,loss of equilibrium, meningitis, prostation, respiratory distress, coma
Late somatic effects Appear months or years following exposure, do not have a threshold, occur in an arbitrary or probabilistic manner, late non-stochastic deterministic effects
Late nonstochastic somatic effects (6) Cataract formation, fibrosis, organ atrophy, loss of parenchymal cells, reduced fertility, sterility
Late stochastic somatic effects (2) Cancer, embryologic effects
3 major types of late somatic effects Carcinogenesis-> stochastic Cataractogenesis->non-stochastic Embryologic effects->stochastic
Embryologic effects Most vulnerable stage->1st trimester b/c of large # of stem cells. Excess doses 200mSv can result in death or congenital abnormalities. .05-.15Gy during preimplantation stage will cause death
Genetic effects The biological effects of ionizing radiation on future generations; result of radiation-induced damage to the DNA of the sperm or ova of the adult
Doubling dose concept The radiation dose that causes the # of spontaneous mutations to occur in a givem generation to increase to 2x their original number. was determined from hiroshima & Nag attacks- aprox 156rem
Created by: rachelbeatty4