Stochastic Deteministic Genetic And Somatic

Question 1

What are the deterministic effects of radiation

Answer 1

Burns
There is some predictability 
There is a threshold dose
Severity is dose related 
There is some tissue repair 
Effects do not accumulate.

Question 2

Somatic effects

Answer 2

Occur in the person receiving the radiation

Somatic effects can be stochastic and deterministic

Question 3

What are the genetic effects

Answer 3

Effect future generations
Effects 6 generations after the original exposure and suspect more
Genetic effects always stochastic

Question 4

What are stochastic effects of radiation damage

Answer 4

Tumours
1.Random and unpredictable don’t know who will get one or level of dose that will produce one. Can get a fatal tumour from 1 dose
Chances pa and be 1 in 3,000,000 opg 1 in 1,000,000
2. Probably increases as dose increases single high dose or multiple low doses
3. No threshold dose can’t guarantee dose at which someone will get a tumour.
4. Severity is dose dependant big dose doesn’t cause a severe effect and low dose doesn’t cause a mild effect depends on where the free radicals effect that body.
5. There isn’t tissue repair in between doses could develop a fatal tumour at any time
6. Effects accumulate throughout life every xray adds to the damage done by the prev examination and increases chance of developing a stochastic effect.
7. There is no safe time between X-rays