Chapter 5: Facility Equipment

Question 1

List the three most common types of cage washers used in today’s animal facilities

Answer 1

1- tunnel washer
2- rack washer
3- cabinet washer

Question 2

How does a RODAC plate test the effectiveness of a sanitation program?

Answer 2

It can be inoculated from environment and incubated and look for any growth

Question 3

List two reasons that automatic watering systems are often used to provide drinking water for laboratory animals

Answer 3

1- to provide a filter system for water

2- eliminate labor of washing and sanitizing bottles

Question 4

What features of a biological safety cabinet product protect the animals inside?

Answer 4

The cabinet air is filtered through a HEPA filter before being exhausted into the room

Question 5

What is one dangerous outcome of autoclaving a liquid in a bottle that is tightly sealed and filled to the top?

Answer 5

The bottle could explode

Question 6

To properly autoclave a material, the temperature and pressure within the autoclave must be maintained for a period of time indicated in the SOP. What three characteristics of the material affect this required time?

Answer 6

1- type of material
2- size of material
3- level of contamination of material

Question 7

List the three methods that are used to check the effectiveness of an autoclave cycle

Answer 7

1- chemical
2- biological
3- mechanical

Question 8

What piece of equipment sterilizes instruments, equipment, and glass items using superheated steam and pressure

Answer 8

Autoclave

Question 9

What piece of equipment burns material such as animal tissues, trash

Answer 9

Incinerator

Question 10

What piece of equipment uses a sliding beam and weighing platform to determine weights

Answer 10

Balance

Question 11

What piece of equipment protects the user from exposure to pathogenic microorganisms

Answer 11

Class III BSC

Question 12

What piece of equipment protects the user from chemical fumes

Answer 12

Fume hood

Question 13

What two features of a cage dumping station help protect the technician during cage changing?

Answer 13

The air-circulating fan and HEPA filter

Question 14

What chemicals are often added to animals’ drinking water to reduce bacterial contamination?

Answer 14

Acid and chlorine

Question 15

What is the primary reason that dirty cages and other spikes equipment should be taken to the cage wash area for cleaning instead of being hand cleaned in the animal room?

Answer 15

Airborne dust & microorganisms can contaminate the environment

Question 16

To prevent animals from becoming dehydrated or even dying, what should the technician always do after cage racks with automatic water systems are moved or changed?

Answer 16

Reconnect the water line

Question 17

What type of cage washer is best used for cleaning larger pieces of equipment such as bulk carts and cage racks?

Answer 17

Rack washer

Question 18

What is superheated steam?

Answer 18

Steam able to be heated above its normal temp