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Flashcards in transmission of infection and infection control Deck (29):
1

what is a reservoir

living or non-living material in/on which an infectious agent multiplies or develops

2

what is a mode of transportation

how infectious agents are passed from one person to another

3

3 main portals of entry

1. skin
2. mucosa
3. transplant

4

what is incubation period

time from entry to the time of first Sx

5

what is period of communicability

time period in which an infectious agent can still be transmitted

6

what are control measures

measures taken to reduce the transmission of infectious material

7

2 levels of control measures

1. public health - pop. level
2. infecition control - hospital level

8

5 main modes of transmission

1. contact
2. droplet
3. aitborne
4. vector borne
5. common vehicle

9

3 types of contact

1. direct - kissing
2. indirect through fomite - passing a ball
3. fecal-oral

10

what are droplet transmission

large resp droplets can travel up to 2 meters - cold virus

11

what are airborne

micro-organisms that result in evaporation and can spread in the air - TB

12

what is vector borne

intects etc. - west nile

13

what is common vehicle

SINGLE contaminated source- bad meat

14

5 public health measures to reduce infection

1. vaccines
2. post-exposure prophylaxis
3. reportable disease
4. contact tracing
5. quarantine

15

3 types of post-exposure prohylaxis

1. vaccine
2. Ig
3. anti-virals

16

what is contact tracing

track all people that have been exposed during the period of communicability

17

what is quaranitine

restriciton of activities of people that have been expose to a disease

18

what are nosocomial infections

hospital aquired infections - 8000 death/year

19

what are 5 infection control measures (hospital)

1. surveillance
2. routine practices
3. additional precautions
4. decolonizatiopn
5. post-exposure prohylaxis

20

4 types of things that might be surveyed

1. surgical site infetions
2. UTIs
3. vasculkar infections
4. problem bacteria

21

2 methods of surveillance

1, manual - go into files and look
2. automatic - use keywords in EMR

22

what are routine practices

practices that should be used for all patients

23

what are additional precautions

precautions used in addition to routine practices for certain pathogens

24

3 contact precautions

1. wash hands
2. wear gown
3. 1 pair of gloves

25

5 droplet procautions

1. wash hands
2. wear gown
3. 1 pair of gloves
4. eye protection
5. mask

26

4 airborne precautions

1. hands
2. neg. pressure room
3. keep door closed
4. N95 mask

27

what is decolonization

topical and systemic antibiotics to reduce the chances of tranmission by reducing the load

28

7 steps in outbreak investigation

1. confirm existence of outbreak
2. dev. case definition
3. create an epi-curve
4. assemble team
5. institue control measures
6. evaluate efficacy of control measures
7. declare outbreak over

29

3 types of outbreaks

1. point source - all infections at once
2. common source - one person ill but infects others over time
3. propagated outbreak - spreads from person to person

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