Chapter 16 Flashcards Preview

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Flashcards in Chapter 16 Deck (21):
1

the practice of making the environment and objects free of microorganisms

asepsis

2

the practice of reducing the number of organisms present or reducing the risk for transmission of organisms

medical asepsis

3

the practice of preparing and handling materials in a way that prevents the patients exposure to living microorganisms

surgical asepsis

4

who developed Standard Precautions?

the CDC to facilitate breaking the chain of infection

5

chemical compound that is used on skin or tissue to inhibit the growth of or to eliminate microorganisms

antiseptic

6

poisonous protein produced by certain bacteria

endotoxin

7

what is the recommended ratio of bleach to water?

1:10

8

pathogens

microorganisms that are capable of causing a disease

9

infection

the entry of an infectious agent

10

carrier that transports an infective agent from one host to another

vector

11

what are the 4 stages of infection process

-incubation
-prodrome
-illness
-convalescence

12

causative agent

- any microorganism or biologic agent capable of causing disease
- ex: bacteria viruses, fungi

13

reservoir

- places where microorganisms are found
- ex: infected wounds, human waste

14

portal of exit

the route by which a pathogen leaves the body of its host

15

mode of transfer

- transfer of pathogens
-ex: direct personal contact w/body excretions, fomites

16

portal of entry

pathogens can enter the body through the mucous membranes of the eyes, mouth, trachea, or skin

17

susceptible host

a human host may be susceptible by virtue of age, state of health, or broken skin

18

what is the first line of defense?

-skin
-functions as a protective barrier for underlying tissues

19

chain of infection

-causative agent
-reservoir
-portal of exit
-mode of transfer
-portal of entry
-susceptible host

20

second line of defense?

helps destroy pathogens that escape the first line

21

third line of defense?

immune response( the bodys reaction to substances interpreted as nonself