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WGU Microbiology D311 Section 3 - Study Guide Questions With Solutions
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WGU Microbiology D311 Section 3 - Study Guide Questions With Solutions
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WGU Microbiology D311 Section 3 - Study GuideQuestions With Solutions
Fomite Right Ans - Any inanimate object to which infectious material
adheres and can be transmitted.
Describe the biological safety levels (BSL) Right Ans - BSL-1: Pose minimal
risks to workers and environment
BSL-2: Pose moderate risks to workers and environment
BSL-3: Serious or lethal diseases spread through respiration
BSL-4: Fatal without any treatment or vaccines
Sterilization Right Ans - The process that completely destroys all microbial
life, including spores.
Sterilant Right Ans - a chemical agent that destroys all microbes
Aseptic technique Right Ans - method used to make the environment, the
worker, and the patient as germ-free as possible
Asepsis Right Ans - absence of significant contamination
Sepsis Right Ans - toxic inflammatory condition arising from the spread of
microbes, especially bacteria or their toxins, from a focus of infection
Sterile field Right Ans - an area that is set up for certain procedures and is
free from all organisms
Commercial sterilization Right Ans - type of sterilization protocol used in
food production; uses conditions that are less harsh (lower temperatures) to
preserve food quality but still effectively destroy vegetative cells and
endospores of common foodborne pathogens such as Clostridium botulinum
Disinfection Right Ans - A process that eliminates many or all
microorganisms, with the exception of bacteria spores, from inanimate objects
Disinfectants Right Ans - antimicrobial chemical applied to a fomite during
disinfection that may be toxic to tissues
, Antiseptics Right Ans - antimicrobial chemical that can be used safely on
living tissue
antisepsis Right Ans - protocol that removes potential pathogens from
living tissue
critical item Right Ans - object that must be sterile because it will be used
inside the body, often penetrating sterile tissues or the bloodstream
semicritical item Right Ans - object that contacts mucous membranes or
nonintact skin but does not penetrate tissues; requires a high level of
disinfection
Degerming Right Ans - protocol that significantly reduces microbial
numbers by using mild chemicals (e.g., soap) and gentle scrubbing of a small
area of skin or tissue to avoid the transmission of pathogenic microbes
sanitization Right Ans - protocol that reduces microbial load on inanimate
surfaces to levels deemed safe for public health
bactericide Right Ans - chemical or physical treatment that kills bacteria
viricide Right Ans - chemical or physical treatment that destroys or
inactivates viruses
fungicide Right Ans - chemical or physical treatment that kills fungi
bacteriostatic Right Ans - having the ability to inhibit bacterial growth,
generally by means of chemical or physical treatment; reversible inhibition of
a microbe's ability to divide
fungistatic Right Ans - having the ability to inhibit fungal growth, generally
by means of chemical or physical treatment
microbial death curve Right Ans - (D value) graphical representation of the
progress of a particular microbial control protocol
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