MOR 365 Survey of Infectious Diseases Lesson 1.3
Should a refrigeration unit be used as a method of disinfection?
No, it does not disinfect the body
What type of disinfectant is Zephiran?
Quaternary Ammonium Compound(aka "Quats)
What are the mechanical methods of microbial control?
Sanitization Degermation Filtration (blood products) Sterilization
Which physical method of control of microbes is the most effective means of controlling microbial growth?
Scrubbing
List the physical methods of microbial control
Scrubbing Heat Ultraviolet Heat
List 3 three factors that influence the action of disinfectants.
Temperature Concentration of disinfection Number of Microbes Nature of the material
What types of processes can result in sterilization?
The autoclave, cold chemical sterilant(e.g. glutaraldehyde), or incineration
Will alcohols kill vegetative or sporulating bacteria?
Vegetative
Can endospores remain alive in boiling water?
Yes
B ywhat name is benzalkonium chloride also known?
Zephiran
Disinfectant
a chemical or physical agent that destroys or inhibits disease-causing microorganisms.
Iodophore
a compound containing iodine which is often used as a preoperative skin disinfectant.
Define Sterilization
a process of completely removing or DESTROYING all life forms and their products, including endospores.
Sterilization
a process of completely removing or destroying all life forms and their products, including endospores.
Germicide
a substance that destroys microorganisms.
Fungicide
a substance that kills fungi.
Virucide
an agent destructive to viruses.
Bactericide
an agent that kills bacteria but not necessarily their spores
Define sanitation.
process to promote and establish conditions which minimize or eliminate biohazards.
Sanitation
process to promote and establish conditions which minimize or eliminate biohazards.
Define disinfection
the destruction or inhibition of disease-causing microorganisms by chemical or physical means.
Define antisepsis
the prevention or inhibiting of the growth of causative microorganisms
Antisepsis
the prevention or inhibiting of the growth of causative microorganisms.
How much time is required for a 2% glutaraldehyde solution to inactivate viruses and vegetative bacteria?
10 minutes
How much time is required for a 2% glutaraldehyde solution to inactivate spores?
3-12 hours
What is a fungicide?
A substance that kills fungi
When cold is used for controlling microbes, is it a sterilization, disinfection, or antiseptic process?
Antiseptic
List an example of an iodophore.
Betadine-Commonly used in hospital surgeries and when treating lacerations
Which halogens are generally used for disinfection?
Chlorine and Iodine
What is the main drawback of using quaternary ammounium compounds as disinfectants?
De-activated in presence of soaps and other organic material.
What term describes the process of destroying all pathogenic microbes?
Disinfection
What is the main difference between sterilization and disinfection?
Disinfection is ineffective against endospores.
What are the two most common alcohol disinfectants?
Ethyl alcohol(ethanol) Isopropyl Alcohol(Isopropanol)
Cremation is which form of physical microbial control?
Heat(Incineration)
What term describes those disinfectants which are compounds of Iodine?
Iodophores
Describe the control of microbes on a dead body placed in a refrigeration until prior to embalming-is it sterilization, disinfection, or antisepsis?
It will inhibit the growth of microbes
