lab safety

Question 1

most danger route and uderestimated of exposure

Answer 1

inhalation of aerosoles

Question 2

how many risk groups are there

Answer 2

4

Question 3

most common risk contamination level in reserach lebs

Answer 3

2

Question 4

what are aersoles

Answer 4

suspensions of solid or liquid particles that can enter resp

Question 5

5 factors that determine infection due to aerosoels

Answer 5

viability of biohazard
conctration of aeorosoles
size
presisitance
susceptibility of host

Question 6

3 ways to decontaminate lab waste

Answer 6

autoclave
disinfect
incinerate

Question 7

temp of autoclave

Answer 7

121

Question 8

most common disinfect for non met

Answer 8

belach, sodium hypochlorite

Question 9

equipment that is used when working with agents that make aerosols

Answer 9

biosafety cabinets

Question 10

test microgorganizm in auticlaves

Answer 10

geobacillus stearothermophilus

Question 11

hepa stands for

Answer 11

high efficiency particulate air

Question 12

standarsd for hepa filters are based on

Answer 12

removal of particles of 0.3 um

Question 13

hepa is made from

Answer 13

densely filter of glass and paper fibers on aluminum or wood base

Question 14

safety cabinets are tested whe 3

Answer 14

annualy, initially, moves/repairs

Question 15

class of biological safety cabinets is based on 3

Answer 15

protection
air circulation
closed system and hepa filter type

Question 16

class 1, 2 a1, a2, b1 issues

Answer 16

recirculation of air , toxins / flamable inot cabinet

Question 17

leacking spciments clean up 7 steps

Answer 17

inform others
PPE
place speciment onto tray and move to cabinet
clean contamianted surface
in cabinet transfers contents to clean container
if requisutions is contaminated move to plastic bag
flood new tray and disinfect/ biohaz

Question 18

non fixed slides are dangerous ?

Answer 18

yes

Question 19

sds stands for

Answer 19

safety data sheets

Question 20

5 things mandatory on sds

Answer 20

identification
handling
first aid
toxicolofy
physical and chemical properties

Question 21

flammable limits

Answer 21

the range at which fuel will burn if ignitions source is there

Question 22

LC50

Answer 22

concentration of substance in air will kill 50% animals

Question 23

LD50

Answer 23

quantity of a substance death to 50% animals

Question 24

TWA

Answer 24

concentration in air that will not harm if exposed to for 8 hrs

Question 25

STEL

Answer 25

15 min, for up to 4 times a day with no adverse affects

Question 26

ceiling limit

Answer 26

should never be exceeded, toxic

Question 27

flashpoint

Answer 27

concentration vaopur and soruce of ignition

Question 28

4 types of aeorosoles

Answer 28

mists dusts smoke fumes

Question 29

human carcinogen in lab

Answer 29

benzene

Question 30

2 chmicals suspected of cancer

Answer 30

ethylene oxide formaldehyde

Question 31

flammable

Answer 31

burns at room temp

Question 32

combustible

Answer 32

must be heated before burn

Question 33

oxidizing

Answer 33

material can provide oxygen to burn

Question 34

corrosive

Answer 34

damage body tisssue

Question 35

3 points to store oxidizers

Answer 35

away from flamables closed lids compatibility

Question 36

does corrosive material just dosent effect pyrex glass

Answer 36

yes

Question 37

are acids and basses corossive

Answer 37

yes

Question 38

are reactive chemicals just alwyas dangerous

Answer 38

yes

Question 39

danger chem in dry state

Answer 39

picric acid

Question 40

laser means

Answer 40

light amplification by stimulated emission of radiation

Question 41

is there no danger with laser

Answer 41

false there is

Question 42

class A fire extin

Answer 42

paper, tectiles, plastics

Question 43

class B fire

Answer 43

Oils

Question 44

class C fire

Answer 44

electiric

Question 45

class D fire

Answer 45

patassium metals

Question 46

cryogenics fluids and ex

Answer 46

gasses that have been liquefied at low temp nitrogen

Question 47

3 equipment when working with liquid nitrogen

Answer 47

full face mask imprevious clothing water proof gloves

Question 48

egronomics keeps who in mind

Answer 48

worker

Question 49

egronomics does not supoert 1

Answer 49

bending head

Question 50

should wrists be raised up when typing

Answer 50

neur

Question 51

breaks every 3/4 hrs for 2-3 min ?

Answer 51

neur, every hr

Question 52

3 egroniics at computer

Answer 52

use wirist rest when not typing kevel monitor key board and mouse adjustable height

Question 53

how long bf opening centrifuge

Answer 53

30 min

Question 54

substance that cause birth defect

Answer 54

teratogenic

Question 55

causes embryo harm

Answer 55

embryogenics

Question 56

DNA harm

Answer 56

mutagenics

Question 57

harm to fetus

Answer 57

fetagenic

Question 58

w/ isolation patietns use

Answer 58

mask

Question 59

when handling materials use

Answer 59

gloves

Question 60

when workking with splatter use

Answer 60

apron