1 - INTRO STUFF AGAIN Flashcards

(129 cards)

1
Q

What us agency establishes biosafety levels and guidelines for clinical laboratories

A

centers for disease control and prevention cdc

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2
Q

What us agency enforces workplace safety standards including laboratory hazard communication

A

occupational safety and health administration osha

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3
Q

What international organization sets standards for laboratory testing and quality systems

A

clinical and laboratory standards institute clsi

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4
Q

What equipment protects laboratory workers from infectious aerosols splashes and sharps

A

personal protective equipment ppe

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5
Q

What infection control approach assumes all patients could have bloodborne pathogens

A

universal precautions up

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6
Q

What infection control strategy considers all body fluids and moist substances potentially infectious

A

body substance isolation bsi

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7
Q

What organization publishes standards for laboratory fire safety and electrical equipment

A

national fire protection association nfpa

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8
Q

What type of hazard includes bacteria fungi viruses prions and parasites

A

biologic hazard

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9
Q

What laboratory items pose sharps injury risk for bloodborne pathogen exposure

A

needles lancets and broken glass

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10
Q

What hazard involves preservatives reagents and chemicals that may be toxic or carcinogenic

A

chemical hazard

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11
Q

What hazard source includes radioisotope labeled reagents and imaging equipment

A

radioactive hazard

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12
Q

What physical hazard can cause electrical shock from equipment failure

A

electrical hazard

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13
Q

What laboratory fire sources include flames and flammable organic solvents

A

fire explosive hazard

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14
Q

What physical hazards cause musculoskeletal injuries in laboratories

A

wet floors heavy boxes and patient handling

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15
Q

What continuous process describes pathogen transmission requiring intervention

A

chain of infection

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16
Q

How many links form the complete chain of infection

A

six links

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17
Q

Name the six components of the chain of infection

A

infectious agent reservoir portal of exit mode of transmission portal of entry and susceptible host

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18
Q

Give examples of infectious agents in the chain of infection

A

bacteria fungi parasites viruses and prions

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19
Q

Give examples of reservoirs in the chain of infection

A

humans animals fomites insects blood and body fluids

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20
Q

Name examples of portals of exit in chain of infection

A

nose mouth mucous membranes gastrointestinal tract and genitourinary tract

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21
Q

Name the five modes of pathogen transmission

A

direct contact droplet airborne vector and vehicle

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22
Q

Name examples of portals of entry for pathogens

A

nose mouth mucous membranes skin and unsterile equipment

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23
Q

Name five examples of susceptible hosts

A

patients elderly newborns immunocompromised and healthcare workers

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24
Q

What three link simplified model focuses on key intervention points

A

infectious agent source mode of transmission and susceptible host

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25
What laboratory procedure generates infectious aerosols if unstoppered tubes are centrifuged
centrifugation
26
What practice creates splashes during specimen processing
heating cultures too rapidly
27
What common lab manipulation releases aerosols from liquid media
flaming inoculating loops in bunsen burner
28
What container failure releases pathogens during transport
leakage from unsealed specimen containers
29
What equipment malfunction causes biohazard spills
broken centrifuge
30
What personal practices transmit pathogens by fecal oral route
failure to wash hands eating drinking smoking applying cosmetics and mouth pipetting
31
What injuries cause direct inoculation transmission
needlesticks broken glass animal bites and scratches
32
What body site allows mucous membrane pathogen entry
conjunctiva of the eye
33
What arthropods serve as pathogen vectors
ticks fleas and mosquitoes
34
What breaks the infectious agent link in chain of infection
immunizations patient isolation and nursery precautions
35
What breaks the reservoir link
hand hygiene standard precautions and sealed biohazard containers
36
What breaks the portal of exit link
decontamination specimen bagging and standard precautions
37
What breaks the transmission mode link
ppe hand hygiene sterile equipment and aerosol prevention
38
What breaks the portal of entry link
hand hygiene standard precautions ppe and patient isolation
39
What breaks the susceptible host link
healthy lifestyle immunizations and postexposure prophylaxis
40
What is the ultimate goal of biological safety programs
prevent transmission by breaking the chain of infection
41
Under universal precautions what body fluids were exempt if no visible blood present
non bloody secretions
42
What does body substance isolation recommend regarding handwashing after glove removal
handwashing only if visibly contaminated
43
What combines universal precautions and body substance isolation into current standard practice
standard precautions
44
Under standard precautions which body product is not considered infectious
sweat
45
What additional materials must be handled as potentially infectious specimens under standard precautions
standards calibrators quality control and proficiency samples
46
What must label all biologic waste containers except certain exceptions
biohazard symbol
47
Which biological specimen may be discarded directly into laboratory sink without sterilization
urine
48
What protective barrier should cover laboratory sink during urine disposal
plexiglas countertop shield
49
What daily sink disinfection uses one to five or one to ten dilution after urine disposal
bleach or phenolic disinfectant
50
What type of waste includes empty reagent bottles and emptied urine containers
noninfectious normal waste
51
What common disinfectants are most frequently used in clinical laboratories
bleach and phenolic disinfectants
52
How long is zero point five percent bleach solution stable after preparation
one week
53
What ratio prepares zero point five percent bleach from six percent sodium hypochlorite
one part bleach plus nine parts water
54
What ratio prepares zero point five percent bleach from eight point two five percent sodium hypochlorite
one part bleach plus fourteen parts water
55
What powder absorbs body fluid spills before decontamination
zorbitrol or solid absorbent powder
56
What happens when absorbent powder contacts body fluid spill
liquid solidifies for scooping into infectious waste
57
When using towels for body fluid spill what disinfectant covers absorbed material
zero point five percent bleach
58
What containers receive all discarded sharp objects in laboratory
puncture resistant leak proof biohazard sharp containers
59
When should biohazard sharps containers be replaced
when safe capacity mark is reached or overfilled
60
What laboratory items constitute primary sharps hazard sources
needles syringes lancets and broken glassware
61
What pathogen transmission risk do sharps injuries primarily cause
blood borne pathogen exposure
62
What chemical hazard sources include preservatives fixatives and laboratory reagents
toxic carcinogenic or caustic agents
63
How should chemical contact with skin be immediately managed
flush with large amounts of water for at least fifteen minutes
64
What should never be attempted with chemical spills on skin before medical evaluation
neutralization
65
What document provides detailed chemical safety information for laboratory reagents
material safety data sheets msds
66
What msds section describes physical and chemical characteristics of hazardous substances
physical and chemical characteristics
67
What msds section details emergency first aid procedures for chemical exposure
health hazards and emergency first aid
68
What msds section covers proper chemical handling storage and disposal procedures
methods for safe handling and disposal
69
What pictogram universally identifies poisonous or toxic chemical hazards
skull with two crossbones
70
What chemical container labeling indicates corrosive hazardous materials
corrosive hazard symbol
71
What chemical container labeling warns of flammable liquid or gas hazards
flammable explosive symbol
72
What five elements must chemical labels include according to un global harmonization system ghs
product identifier signal word hazard statements precautionary statements pictograms and supplier identification
73
What laboratory safety rule prevents chemical burns when mixing acids
always add acid to water while mixing
74
What disposal method is acceptable for adequately diluted or neutralized chemical waste
sewer system disposal with copious water flush
75
What principle governs radiation exposure related to time distance and shielding
inverse square law and time minimization
76
What fetal risks result from in utero ionizing radiation exposure during pregnancy
teratogenic carcinogenic and mutagenic effects
77
What pregnancy status requires avoiding radioactive hazard areas
pregnant or potentially pregnant personnel
78
What electrical equipment feature ensures proper grounding
three pronged plugs
79
What immediate actions follow electrical shock accidents
turn off circuit breaker unplug equipment and move with nonconductive object
80
What race acronym guides fire response priorities
rescue alarm contain extinguish evacuate
81
What pass acronym describes fire extinguisher operation sequence
pull pin aim at base squeeze handles sweep side to side
82
What fire extinguisher material is suitable for ordinary combustibles like paper and wood
water dry chemicals or steam class a
83
What extinguisher type is appropriate for flammable liquids like gasoline and oil
dry chemicals carbon dioxide foam or halon class b
84
What is the preferred extinguisher for electrical equipment fires involving motors and plugs
dry chemicals or carbon dioxide class c
85
What method controls combustible metal fires like magnesium or sodium
sand dry powder or metal x class d
86
What fire type involves grease oils and fats in kitchen settings
class k fires
87
What physical hazards contribute to laboratory falls sprains and strains
wet floors heavy boxes and patient handling
88
What ergonomic practice prevents back injury when lifting heavy laboratory objects
bend knees
89
What personal appearance rules reduce laboratory hazards
pull back long hair avoid dangling jewelry and wear closed toed shoes
90
Who is recognized as the father of modern handwashing practices
dr ignaz semmelweis
91
What are three songs equivalent to proper handwashing duration of fifteen to twenty seconds
happy birthday twinkle twinkle little star and alphabet song each sung twice
92
When should laboratory personnel use alcohol based hand cleansers
when hands are not visibly soiled
93
When is handwashing with soap and water required over alcohol cleansers
when hands are visibly soiled
94
What is the first step in cdc handwashing procedure
wet hands with warm water
95
What duration is required to rub lather between fingers thumbs under nails and wrists
at least fifteen to twenty seconds
96
What final step prevents faucet recontamination during handwashing
turn off faucet with clean paper towel
97
What primary infection transmission route involves laboratory personnel hands
hand contact
98
What hand hygiene is required before and after patient contact in clinical settings
hand sanitization
99
When must laboratory hands be sanitized after ppe removal
after gloves are removed
100
What situations require immediate hand sanitization in laboratory
when hands are knowingly contaminated
101
What designated areas require hand sanitization before entry and exit
break areas and bathroom facilities
102
What prevents faucet recontamination as the final handwashing step
turn off faucets with clean paper towel
103
What generates stable acid end products maintaining low ph in mr vp broth
rubbing applying friction during handwashing
104
What final component completes the six link chain of infection
susceptible host
105
What nfpa diamond section uses blue color for health hazards
health hazard blue diamond
106
What nfpa diamond section uses red color for flammability hazards
fire hazard red diamond
107
What nfpa fire hazard rating indicates flash point below seventy three degrees fahrenheit
four extreme danger
108
What nfpa fire hazard rating indicates flash point below one hundred degrees fahrenheit
three below one hundred f
109
What nfpa fire hazard rating indicates flash point below two hundred degrees fahrenheit
two hazardous
110
What nfpa fire hazard rating indicates flash point above two hundred degrees fahrenheit
one slightly hazardous
111
What nfpa rating indicates material will not burn
zero will not burn
112
What nfpa diamond section uses yellow color for reactivity instability hazards
reactivity yellow diamond
113
What nfpa reactivity rating indicates shock and heat may cause deterioration
three may deteriorate
114
What nfpa reactivity rating indicates violent chemical change
two violent chemical change
115
What nfpa reactivity rating indicates unstable if heated
one unstable if heated
116
What nfpa reactivity rating indicates chemically stable material
zero stable
117
What nfpa diamond section uses white color for special hazards
specific hazard white diamond
118
What nfpa pictogram indicates oxidizing agent
oxidizer oxy
119
What nfpa pictogram indicates acid hazard
acid
120
What nfpa pictogram indicates alkali base hazard
alkali alk
121
What nfpa pictogram indicates corrosive material
corrosive cor
122
What nfpa pictogram indicates water reactive material
use no water w
123
What nfpa pictogram indicates radiation hazard
radiation
124
What differs between nfpa and osha hcs hazard rating numbering
nfpa zero least to four most osha one most severe to four least severe
125
What is the primary purpose of nfpa diamond labeling system
emergency response information for fire spills and planning
126
What nfpa diamond sections provide health flammability and instability information
health blue flammability red instability yellow special white
127
What osha hcs label elements include product identifier and supplier information
product identifier signal word hazard statements pictograms precautionary statements and supplier identification
128
What hazard types does osha hcs cover beyond nfpa scope
chronic long term health effects and broad physical hazard classes
129
What osha hcs hazard categories are required on labels versus safety data sheets
pictograms and categories on safety data sheets not labels