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Radiation Safety
Radiography for Veterinary Technology
| Question | Answer |
|---|---|
| What causes scatter radiation? | it's caused by the primary beam bouncing off of the patient, the table, and the floor |
| What is a standard patient exposure measured in? | milliroentgens |
| What is the primary source of radiation? | the patient |
| Where is the most effective place to wear an x-ray badge? | shirt collar |
| What device is used to measure radiation exposure to personnel? | Dosimeter |
| What is scatter radiation? | radiation that bounces off its target and "scatters" throughout the environment |
| What radiation does PPE not protect against? | primary beam |
| What is the guideline that ensures radiation exposure is kept as low as possible? | ALARA |
| What is the difference between somatic and genetic damage from radiation? | Somatic damage occurs only within the body during the lifetime of that person, whereas genetic damage can be passed down to future generations |
| Where does radiation exposure come from? | the primary beam, scatter radiation, and the x-ray tube head |
| What is the minimum PPE required during radiation exposure? | gloves and gowns with 0.5 lead equivalent |
| Who should never be allowed in the radiation area? | Pregnant women and anyone under the age of 18 |
| What is the difference between primary and scatter radiation? | Primary radiation is found in the x-ray beam leaving the machine; it's used to make the film. Scatter radiation is found outside of the primary beam; it is not useful in any way and poses a threat to personnel in the room |
| Explain how you can reduce radiation exposure. | Time, distance, and shielding. Getting the image correct the 1st time, being as far away from the patient and primary beam as possible, and wearing PPE |
| What unit is radiation exposure measured in? | Sievert (S) |
| What is 1 Sievert equal to? | 100 REM |
| What is the maximum permissible dose (MPD) a person can receive in 1 year? | 5 REMs |
| What organs are most affected by radiation? | Skin, lymphatics, hematopoietic tissue, breast tissue, thyroid, bone growth centers, eyes, and gonads |
| Describe how radiation affects the human body. | Radiation may have no effect or damage cells that are easily repairable. It could also damage cells beyond repair or even kill them. Because children under 18 still have rapidly growing cells, they should never participate in x-ray production. |
Created by:
BrianaPenn
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