Lab 9- Control of Microbial Growth

Microbial load is

the colonies that grow on a media

the microorganisms' weight.

the number one to get rid of comtamination

the number of infectious pathogens on an object or in an organism

the number of infectious pathogens on an object or in an organism

Choose the best answer. In a hospital, cleaning techniques are put into place

because the aroma is more pleasing when a hospital is clean

to control the spread of infection.

because the CDC requires it.

to control the spread of infection

The higher the microbial load, the less the item needs to be decontaminated.

True

False

False

Choose all that apply. Critical items

Stethoscope

Non Heat sensitive items should be sterilized with steam.

can be cleaned with high level disinfectants

Forceps are critical items

contact only with mucous membranes or the skin

contact normally sterile tissue (like blood)

Forceps are critical items

contact normally sterile tissue (like blood)

Choose all that apply. SemiCritical items

scalpels would be semicritical

must be cleaned with high level disinfectants

endopscopes would be semicritical

must be cleaned with a low level disinfectant

must be thoroughly cleaned before it is sent through other decontamination processes

must be cleaned with high level disinfectants

endoscopes would be semicritical

must be thoroughly cleaned before it is sent through other decontamination processes

Selective toxicity means that the pathogen is toxic to the drug.

True

False

False

What is so great about sterilization?

Sterilization gets rid of the entire microbial load meaning there are no microorganisms and no endospores present.

Sterilization is the lowest decontamination there is

Sterilization reduces the microbial load

Sterilization gets rid of all of the microbial load except for endospores.

Sterilization gets rid of the entire microbial load meaning there are no microorganisms and no endospores present.

Wet heat takes longer to achieve sterilization that dry heat.

True

False

False

Which type of indicator introduces a decontaminated sample to a new media and sees if the microorganisms can grow again on the media when put into a perfect environment?

Chemical

Binarical

Aerobical

Biological

biological

High level disinfection kills everything but

Viruses

Helminth

Fungi

endospores

endospores

Low level disinfection only kills

Mycobacterium sp.

Fungi

Spores

some bacteria

some bacteria

Antisepsis lowers the microbial load on your skin.

True

False

True

Antibiotics are used to treat bacteria only.

True

False

True

With a zone of inhibition, an antimicrobial that works against the microorganism will have a

Larger zone of inhibition

Smaller zone of inhibition

larger zone of inhibition