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Flashcards in Occupational HS Pt2 Deck (41)
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1

Effects of radiation may cause formation of ___ and ____ which may cause ____ damage

Formation of ions and free radicals. May cause chromosomal damage

2

Radiation increases risk of what kinds of cancer

Thyroid, bone, lymphatic system, hematopoietic system (blood cell making )

3

What rapidly diving cells are most susceptible to radiation

Ovaries and testes, skin, intestinal lining, bone marrow

4

____ are worn to measure radiation exposure over time

Dosimeters

5

Radiation is measured in what unit

Millisieverts (mSv)

6

Maximum radiation exposure limits in US for a non pregnant adult

50mSv annually

7

Maximum radiation exposure limits in US for a pregnant woman

5 mSv for course of pregnancy

8

Maximum radiation exposure limit in US for a person under 18

5 mSv

9

If high dose radiation exposure occurs immediately before contraception, there is an increased risk of

Down syndrome, leukemia

10

If a high dose radiation exposure occurs in first 2 weeks of pregnancy, there is an increased risk of

A spontaneous abortion

11

High dose radiation exposure in first 4 months of pregnancy increases the risk of

Epilepsy, mental retardation, ocular genital or skeletal defects, stunted growth

12

High radiation exposure after 4 months of pregnancy risks

Minor defects, lower incidences

13

Radiation exposure should be ALARA, meaning

As Low As Reasonably Achievable

14

3 tenets of achieving ALARA radiation exposure

Time: decrease amount of exposure time
Distance: increase distance from source
Shielding: protective clothing

15

Examples of radiation shielding

Lead apron/ gloves, thyroid shields, lead wall

16

In nys, employers cannot order who to perform tasks that directly expose them to xray beams

Persons under 18
Fertile women (not necessarily pregnant)

17

Liquid gas anesthetics _____ rapidly into the room when uncapped.
____ through skin into the circulation

Evaporate
Absorbed

18

Where is waste anesthetic gas common

Prep rooms (where animal is anesthetized), surgical suites, treatment rooms, recovery areas (exhaled while recovering)

19

Scavenging system

System for collecting and disposing of anesthetic has after it has been used (ex: tube connected to machine, going out window)

20

NIOSH

National institute for occupational safety and health

21

NIOSH recommends a maximum anesthesia exposure of

2 ppm hourly (parts per notation)

22

Example of an anesthetic gas brand that is not used anymore

Methoxyflurane

23

Long term effects of anesthetic gas exposure

Reproductive disorders, liver or kidney disease, nervous system dysfunction

24

Brand examples of newer anesthetics that are far less likely to stay in your system or cause side effects

Isoflurane, sevoflurane

25

An effective scavenging system may reduce waste gas in clinic by ____ %

90%

26

Test anesthesia machine for ____ each day

Leaks

27

Pour liquid anesthesia into vaporizer using a ____ instead of directly from bottle

Nozzle

28

Anesthetic techniques

Injectable anesthetics, intubation, mask induction (better than chamber induction)

29

Which anesthetic technique reuses gas

Intubation. (When patient exhales, goes back in tube)

30

After injecting anesthesia, you

Hook the animal up to gas at a low concentration