CH. 26 -- Hand Washing

Question 1

ubiquitous

Answer 1

means everywhere – bacteria are ubiquitous

Question 2

BACTERIA

Answer 2

1. ubiquitous

2. most bacteria are not pathogenic in their natural habit, only 1 in 50,000 bacteria causes disease

Question 3

opportunistic pathogen

Answer 3

infection caused only once pathogen is given the proper circumstance/situation

Question 4

normal biota

Answer 4

harmless and some are even beneficial, naturally live on skin, gut, saliva, etc. – are NOT easily removed from skin

Question 5

transient organisms

Answer 5

found on the skin for short periods of time, but do not grow there – acquired from contact with contaminated surafaces and are usually easily removed – can cause disease – easily transferred person to person

Question 6

Hand Washing

Answer 6

best practices that can limit the transmission of pathogens from one human to another – 3 components: soap or detergent, friction and antimicrobial agent

Question 7

Saponification

Answer 7

soaps are produced by this process – involves treating a fat with alkali (base) in the present of heat. Soaps and detergents emulsify the skin oils in which bacteria is trapped

Question 8

Surfactants

Answer 8

are amphipathic, which means they have a lipid-soluble portion and water-soluble portion

Question 9

Friction

Answer 9

helps us physically remove the emulsified skin oil with the trapped bacteria

Question 10

Antiseptic

Answer 10

antimicrobial agent – helps us remove remaining bacteria without damaging the skin

Question 11

amphipathic

Answer 11

has a lipid-soluble portion and water-soluble portion