Lab Exercise 1 (Hand Washing) Flashcards

1
Q

Define Transient flora

A

organisms you acquire through your daily activities. Pick up temporarily then gone. (some harmless & ones pathogens cause infection)

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2
Q

Define Resident flora

A

organisms that are generally present on humans (normal flora) Don’t cause disease, beneficial, unharmful

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3
Q

Define disease

A

a set of signs (high fever) or symptoms (complains, stomach ache) that interfere with normal functioning (ex vomiting, waking up)

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4
Q

Define opportunistic pathogen

A

an organism that needs certain conditions to cause disease. Normally don’t cause disease but can under certain (some) conditions. ex” cut on skin, another infection @ same time

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5
Q

Define pathogen

A

An organism that causes disease. Able to cause disease by having to evolve & make way around normal barriers and immune function

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6
Q

What’s the purpose of washing your hands? What does the CDC say about it?

A

Handwashing is the single most important procedure for preventing nosocomial (hospital acquired) infections

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7
Q

If given a plate could you determine if hand sanitizer removed the transient flora?

A

There was no colonies on that quadrant

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8
Q

Is it always “a good thing” if you see no colonies in any quadrant?

A

Not always becasue if you dont see no colonies after washing it could mean you didn’t scrub as hard to bring up that flora.

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9
Q

Colonies in the scrub quadrant most likely represented which group of organisms:
transient or resident flora?

A

Resident Flora- unharmful, normal flora

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10
Q

Microbial antagonism

A

growth of some organism(normal flora) prevents growth of others(pathogen: disease causing organisms)

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