Nx 100 Ch 27 Flashcards Preview

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Flashcards in Nx 100 Ch 27 Deck (14):
1

2 types of microorganisms

nonpathogens - resident/normal flora
pathogens - transient

2

6 components of an infection

infectious agent - bacteria, virus, etc
reservoir
portal of exit
means of transmission -
portal of entry
susceptible host - most overcome host defenses

3

Ideal reservoir

environments that offer:
moisture, warmth, darkness, nourishment, and O2 (aerobic only)

4

4 stages of infection

incubation period - no symptoms, agent reproducing
prodromal - early s&s appear; most infectious
full stage - specific s&s
convalescent - s&s disappears

5

Normal WBC count

5000 - 10000 / mm3

6

medical asepsis

CLEAN technique
practices that reduce the number and transfer of pathogens

7

surgical aspesis

STERILE technique
practices that render and keep objects and areas free from microorganisms

8

handwashing

the most effective way to help prevent the spread of organisms

9

3 crucial elements to good handwashing

time - 15 seconds
friction
soap

10

resident microorganisms

nonpathogenic, normal flora
found in skin creases
requires friction w/ brush to remove

11

transient microorganisms

may be pathogens, not normal flora
attached loosely on skin
removed w/ relative ease

12

sterlilization

destroys all microorganisms

13

disinfection

destroys pathogens but NOT spores

14

3 types of nosocomial infections

exogenous - acquired from other people
endogenous - occurs from microbes harbored w/in person
latrogenic - results from treatment/procedure