Human studies

Question 1

order of severity of radiation symptoms

Answer 1

hematopoietic
GI
Cardio
CNS

Question 2

LD50 of radiation

Answer 2

5000 mSv

Question 3

cancer risk from 5 mSv

Answer 3

0.025%

Question 4

cancer risk from 20 mSv

Answer 4

0.100%

Question 5

cancer risk from 50 mSv

Answer 5

0.25%

Question 6

cancer risk from 500 mSv

Answer 6

2.5%

Question 7

cancer risk from 5,000 mSv

Answer 7

25%

Question 8

Risk of dying from cancer with no radiation exp

Answer 8

27.1%

Question 9

Absolute Risk

Answer 9

Cases / population

incidence of disease in a population

Question 10

Relative Risk

Answer 10

exposed / unexposed
cases / population //
cases / population

exposed versus unexposed

Question 11

Odd Ratio

Answer 11

diseased / non diseased
exposed/unexposed//
exposed/unexposed

Odds of diseased person having been exposed

Question 12

Relative risk study

Answer 12

Cohort

Question 13

Odds ratio study

Answer 13

Case control

Question 14

When can OR approximate RR

Answer 14

case studies are representative
controls are representative
disease does not occur frequently

Question 15

Excess Relative Risk

Answer 15

RR - 1

Question 16

ecological fallacy

Answer 16

infer association b/w disease and individuals based on group association

Question 17

Linear model

Answer 17

overestimate risk

Question 18

quadratic model

Answer 18

underestimate risk

Question 19

two unacceptable models

Answer 19

hormesis

threshold

Question 20

Attributable risk

Answer 20

Re - Rn