Show:
Acute Radiation Syndromes
Threshold Doses
Agencies
Reporting Errors and R.S.P
Dose Limits
100

How many stages are there for Acute Radiation Syndromes and what are they?

4 stages: Prodromal, Latent, Manifest Illness, Recovery or death

100

What is epilation and what is the threshold dose for temporary and permanent?

Hair loss (alopecia)

Temp = 3 Gy to hair follicles 

Permanent = 7 Gy to hair follicles  


100
Transportation of radioactive materials
What is the Department of Transportation (DOT)?
100
Is a pregnant worker/student able to undeclare a pregnancy after she has already declared it to her RSO?
Yes
100
What is the annual public exposure limit?
1 mSv
200

What are the 3 possible versions of Acute radiation syndrome and what is the threshold dose for each?

Hematologic Syndrome (1-10 Gy)

Gastrointestinal Syndrome (6-10)

Central Nervous System Syndrome (50 Gy)

All are whole body doses delivered over a very short period of time

200

What does LD 50/30 mean and what is the dose?

Lethal whole body dose for 50% of people after 30 days 

3-4  Gy whole body dose

200
Regulates the use of machines that produce ionizing radiation
What is the Food and Drug Administration?
200
What does the Radiation Safety Program do?
Designates standards and rules for the safe handling and use of radiation
200
What is the annual occupational exposure limit?
50 mSv
300

Hematologic Syndrome is also known as?

Bone Marrow Syndrome

300

How much dose causes temporary and permanent sterility in male gonads?

Temp = 2.5 Gy to gonads 

Permanent = 5-6 Gy to gonads

300
Set the first radiation protection standards
What is the ICRP?
300
The Radiation Safety Officer should be a qualified _____?
Medical Physicist
300
The effective dose equivalent limit are considered ______ effects?
Stochastic
400
What is the time period of Stage 4 for the GI Syndrome?
3-4 days
400

What is desquamation, what are the types and the associated doses? 

Shedding of the skin

Dry = 10 Gy to local skin area 

Moist = 15 Gy to local skin area

400
Established in the US and is the primary standard setter
What is the NCRP?
400
What are the annual public and occupational exposure limits in rems?
Occupational limit = 5 rem Public limit = 0.1 rem
500
How long is the latent period for the Central Nervous System Syndrome?
6-12 hours
500
Describe the difference in early fetal radiation exposure, middle stage exposure, and late exposure
Early- all or nothing effect Middle- delay in development, developmental deficiencies Late- decreased radiosensitivity at 20 weeks, more long term effects
500
NCRP, ICRP, and UNSCEAR
What is advisory agencies?