MOD 6 BIOSAFETY

Question 1

intentional release of pathogenic microorganisms aims to protect public health and the environment

Answer 1

biosafety

Question 2

containment controls of biosafety level (principles of laboratory)

Answer 2

Laboratory practices
- Safety equipment
- Facility construction

Question 3

barrier that can use as a personal protective equipment between lab worker and pathogen

Answer 3

physical barriers (mga sinusuot)

Question 4

type of barrier that has structural aspects of the laboratory that make working environment safer against
infection

Answer 4

Secondary barriers

Question 5

replace the hazard

Answer 5

substitution

Question 6

change how people works like social distancing

Answer 6

adminstrative controls

Question 7

refers to the equipment and facility design reduce exposer to the hazard eg; biosafety cabinets

Answer 7

engineering controls

Question 8

physically remove hazard (vaccines)

Question 9

HIERARCHY OF CONTROLS

Answer 9

PPE
Administrative controls
engineering controls
substitution
elimination

Question 10

BSL that has an agents not known to cause disease in healthy adults

Answer 10

Biosafety Level 1

Question 11

agents in Biosafety Level 1

Answer 11

Bacillus subtilis, Naegleria
gruberi, infectious canine hepatitis virus,
non-pathogenic E. coli species

Question 12

Biosafety cabinets that for operation protection (for person only)

Answer 12

class 1 Biosafety cabinet

Question 13

Biosafety cabinets that for protection of spealized laboratory dealing with deadly pathogen

Answer 13

class 3

Question 14

Primary hazards of biosafety level 2

Answer 14

• accidental needle sticks
• exposure to eyes and nose (mucous membranes)
• ingestion of infectious material

Question 14

Biosafety cabinets that for operational and environment is protected also the product

Answer 14

class 2

Question 15

Agents associated with human disease generally required for any human-derived blood, bodily fluids, tissues in which infectious agent may be unknown

Answer 15

Biosafety Level 2

Question 16

example agent of a biosafety level 2

Answer 16

measles virus, Salmonella
species, pathogenic Toxoplasma, Clostridium botulinum, hepatitis B virus

Question 17

primary hazards of biosafety level 3

Answer 17

needle sticks & ingestion exposure to infectious aerosols

Question 17

why does the west nile accur

Answer 17

laboratory
worker cut finger while dissecting
bird; 4 days later, had symptoms of fever, myalgia, recurring sweats, hot flashes

Question 17

where does the west nile virus come from

Answer 17

birds

Question 18

common source of
laboratory-acquired infection also known as a classified as potential biological weapon

Answer 18

tularemia

Question 18

biosafety level with an agents that is potential for respiratory
transmission, may cause serious and potentially lethal infection

Answer 18

biosafety level 3

Question 18

practices of biosafety level 2

Answer 18

policies to restrict access to lab;
- biohazard warning signs posted
outside lab;
- surveillance of laboratory personnel
with appropriate immunizations
offered;
- biosafety manual with definitions of
needed waste decontamination or
medical surveillance policies;
- supervisory staff who have experience
working with infectious agents and
specific training for laboratory
personnel in handling these agents

Question 19

specific training for lab personnel in handling potentially lethal agents;

Answer 19

biosafety level 3

Answer 20

Corridors separated from direct
access to lab
- Access through self-closing double doors
- Air handling systems to ensure
negative air flow (air flows into the lab)
- Air pumped into lab not re-circulated in building

Answer 20

Dangerous and exotic agents with high risk of life-threatening disease, aerosol-transmitted

Question 20

acquired virus because of the infected monkeys from uganda

Answer 20

Marburg infection in 1960

Question 20

infectious agents of biosafety level 4

Answer 20

Ebola virus, viruses that cause
CongoCrimean hemorrhagic fever, Lassa
fever

Question 20

No available vaccines or therapy

Answer 20

biosafety level 4

Question 21

secondary barrier of biosafety level 4

Answer 21

isolated zone or a separate building;
- dedicated supply and exhaust,
vacuum, decontamination systems;
a recommended absence of windows
(or sealed and resistant to breakage)