LATG CHapter 7Occupational health and safety Flashcards Preview

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Flashcards in LATG CHapter 7Occupational health and safety Deck (10)
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1
Q

Risk assessment

A

includes knowing what types of hazards are present and then determining the level of protection necessary to minimize the danger they pose

2
Q

threshold limit value (TLV )

A
  • chemical substance is an estimate of the reasonable level to which a worker can be exposed without adverse effects.
  • issued by the American Conference of Governmental Industrial Hygienists
3
Q

Safety data sheets provide

A

Physical property and toxicology information

4
Q

Alpha particles

A

particles are emitted from radioisotopes such as americium-241 (commonly used in smoke detectors
-heavy; they travel just a few centimeters in the air and are easily absorbed by thin layers of light materials, such as a sheet of paper. They cannot penetrate the skin, so they generally pose the least threat to safety when external. 2 protons

5
Q

Beta (β) particles

A

are subatomic particles that are either an electron, which is negatively charged, or a positron, which is positively charged
- thousands of times smaller than alpha particles. They move at high speed and have a higher energy than alpha particles. Tritium (3H), carbon-14 (14C)

6
Q

Ionizing radiation

A

causes breaks in DNA molecules and generates destructive free radicals (cancer, mutations)

7
Q

Gamma (γ) radiation and x-rays

A

electromagnetic radiation similar to visible light, radio waves, and ultraviolet light, but with higher energy. Gamma radiation is generated from radioactive decay. Gamma radiation and x-rays can penetrate through the body,

8
Q

Bremsstrahlung

A

An X-ray produced by beta particles when they decelerate

9
Q

Which type of radiation is electromagnetic radiation generated non-radioactively

A

Xrays

10
Q

Exposure to which of the following is a potential hazard related to the use of lasers during surgery

A

Aerosols and gases