Stochastic effects of radiation are defined as effects that increase in __________ with increasing dose.
What is probability
100
Deterministic effects of radiation are defined as effects that increase in _________ with increasing dose.
What is severity
100
Prodromal Symptoms
What is Nausea Vommiting and possibly Diarrhea
100
During the first 2-5 weeks of gestation, the birth defects commonly caused by radiation exposure are _________ defects.
What is skeletal
200
The length of time after exposure and before death is called.
What is Mean Survival Time
200
Dose response curve for most stochastic effects
What is Linear NonThreshold
200
Dose Response curve for most deterministic effects.
What is Nonlinear Threshold
200
The gastrointestinal syndrome is characterized by damage to the tissues of the _________________.
What is small intestine
200
During the period from 6-8 weeks of gestation, the birth defects most commonly caused by radiation exposure are ____________ deformities.
What is neurological
300
Loss of hair
What is epilation
300
The dose of radiation that produces twice the frequency of genetic mutations as would have been observed without the radiation is called _________
What is the Genetic Doubling Dose
300
The two most sensitive human cell types
What is lymphocytes and spermatagoina
300
For the Central Nervous System syndrome, death occurs primarily from edema damage (pressure) to the __________
What is Brain
300
During the period from 8-12 weeks of gestation, the developing fetus becomes clear of risk for morphological (structural) deformities, but it is susceptible to radiation-induced ____________________.
What is mental retardation
400
The effects or radiation exposure on the chromosomes of human gametes, spermatazoa and ova (egg cells), prior to fertilization are called ___________ effects.
What is mutagenic
400
The lowest radiation dose threshold resulting in any measureable biologicaly effect is about ____ rem, which can cause chromosome abberations if it is delivered in a one-time exposure and not protracted.
What is 5
400
About ___ % of somatic damage to an organism is biologically repairable.
90%
400
List all 4 stages of acute radiation syndrome in order.
Prodromal, Latent, Manifest, Death or Recovery.
400
From 2 to 8 weeks gestation is the critical period of ____________ for the embryo, when tissues differentiate and identifiable organs begin to form.
What is organogenesis
500
The term _____________ refers to any defect present at birth, which may have been caused by either mutagenic effects or teratogenic effects.
What is congenital defects
500
The type of leukemia that is not radiation induced.
What is chronic lymphocytic leukemia
500
When a person is exposed to radiation, which layer of the skin is the first to be damaged?
What is Basal
500
Which hemopoetic cell shows a rapid decrease in number within minutes after radiation exposure, and have a slow recovery time ?
Lymphocytes
500
Effects of radiation occurring from en-utero radiation exposure to a developing embryo or fetus are known as _________.