Chapter 11 (Physical and Chemical Agents for Microbial Control)

Question 1

Sanitization =

Answer 1

technique that removes microbes + debris to ~ safe levels
ex: dishwashers, laundry

Question 2

Disinfection =

Answer 2

destruction of vegetative pathogens ex: bleach, boiling water, Ly sol

Question 3

Sterilization =

Answer 3

complete destruction of all microbes ex: autoclaving, ionizing radiation, flaming

Question 4

Degermation =

Answer 4

cleansing technique that removes microbes & dirt from living tissue
ex: hand washing w/ soap, alcohol wipe

Question 5

Asepsis =

Answer 5

Technique that destroys
on body surface
ex Betadine, Antibact. soap, chlorhexidine

Question 6

microbistatic =

Answer 6

inhibits growth

Question 7

microbicidal =

Answer 7

kills

Question 8

Factors that influence the killing rate by antimicrobial agents

Answer 8

1. length of exposure
2. # of microbes = load increased load, increased time
3. nature of microbes - bact, virus, fungi, mix
   - vegetative cells or Spores
4. mode of action - kill or inhibit
5. temp or pH of environ
   6 conc. of agent
   7 presence of interfering material (ex: organic matter, debris)

Question 9

Answer 9

B

Question 10

Answer 10

B

Question 11

Answer 11

B