Flashcards in Chapter 16 Deck (21):
the practice of making the environment and objects free of microorganisms
the practice of reducing the number of organisms present or reducing the risk for transmission of organisms
the practice of preparing and handling materials in a way that prevents the patients exposure to living microorganisms
who developed Standard Precautions?
the CDC to facilitate breaking the chain of infection
chemical compound that is used on skin or tissue to inhibit the growth of or to eliminate microorganisms
poisonous protein produced by certain bacteria
what is the recommended ratio of bleach to water?
microorganisms that are capable of causing a disease
the entry of an infectious agent
carrier that transports an infective agent from one host to another
what are the 4 stages of infection process
- any microorganism or biologic agent capable of causing disease
- ex: bacteria viruses, fungi
- places where microorganisms are found
- ex: infected wounds, human waste
portal of exit
the route by which a pathogen leaves the body of its host
mode of transfer
- transfer of pathogens
-ex: direct personal contact w/body excretions, fomites
portal of entry
pathogens can enter the body through the mucous membranes of the eyes, mouth, trachea, or skin
a human host may be susceptible by virtue of age, state of health, or broken skin
what is the first line of defense?
-functions as a protective barrier for underlying tissues
chain of infection
-portal of exit
-mode of transfer
-portal of entry
second line of defense?
helps destroy pathogens that escape the first line