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Flashcards in infection control Deck (25):
1

what is colonization

when a microorganism invades the host but does not cause the infection

2

what is an infection

the invasion of a susceptible host by pathogens or microorganisms resulting in disease

3

what is a communicable disease

the infectious process transmitted form one person to another

4

what is symptomatic

if pathogens multiply and cause clinical signs and symptoms

5

what is asymptomatic

if clinical signs and symptoms are not present

6

what is the most important technique to use in preventing and controlling transmission of infection

hand hygiene

7

what is the chain of infection

infectious agent/pathogen
reservoir
portal of exit
mode of transmission
portal of entry
susceptible host

8

what is immunocompromised

having an impaired immune system

9

what is virulence

the ability to produce disease

10

what is aerobic bacteria

require oxygen for survival and for multiplication sufficient to cause disease

11

what is anaerobic bacteria

thrive where little or no free oxygen is available

12

what is bacteriostasis

prevention of growth and reproduction of bacteria

13

bactericidal

destructive to bacteria

14

what are the 4 stages of infectious process

incubation period
prodromal stage
illness stage
convalescence

15

who are at greater risk for health care associated infections

multiple illnesses
older adults
poorly nourished
lowered resistance to infection

16

what is a iatrogenic HAI

from a procedure

17

what is a exogenous HAI

from microorganisms outside the individual

18

what is a endogenous HAI

when the patients flora becomes altered and an overgrowth results

19

what are major site for HAI infection

surgical/traumatic wounds
urinary and respiratory tracts
bloodstream

20

what factor influence infection prevention and control

age
nutrtional status
stress
disease process
treatments or conditions that comprise the immune response

21

what is asepsis

absence of pathogenic microorganisms

22

what is an aseptic technique

practices/procedures that assist in reducing the risk of infection

23

what is medical asepsis

procedures for reducing the number or organism present and preventing the transfer of organisms

24

what is surgical asepsis

prevents contamination of an open wound, serves to isolate the operative area from he unsterile environment

25

how does a sterile field become contaminated

object or field out of range of vision or an object held below a person waist
prolonged exposure to air
edges of sterile field
comes in contact with something wet