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15 Cards in this Set
- Front
- Back
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main thing to do- to stop spread of hospital acquired infection
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hand washing
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why worry about nosocomial infection? 3 reasons
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morbidity, mortality, cost
morbidity ( increase hospital stay 5-10d) mortality ( risk of death doubles) cost ( infection control is the most cost effective prevention) |
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typical incubation period for nosocomial infection
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72 hours
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endemic infection vs. epidemic infection
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endemic infection ( background, usual rate)
epidemic infection ( outbreak, significant increase from usual rate) |
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# infected/population at risk
over time period |
prevalence
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point prevalence vs. period prevalence
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snapshot vs. given period of time
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measure worst outcome of infection in the population
formula |
crude or overall mortality rate.
pt died/pt admitted |
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worst outcome of infection in those infected
formula |
attributable mortality rate
pt died/ pt with disease |
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measure infections related to medical devices
formula |
device associated incidence rate
# new device related infection/ # days of use ( infection/ device use days) |
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source of info used to determine presence and classification of an infection
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clinical, lab, supportive data
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are these infections? colonization, inflammation
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no!
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use of hospital epidemiology
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decrease infection/cost
increase quality |
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target for hospital surveillance
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special pt, dx and therapeutic procedures, specific pathogens.
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describe how typical epidemic looks like
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rise and fall
peak? |
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4 methods of disease spread
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direct contact(food or IV), indirect( hands of healthcare worker, MRSA and rotavirus), droplet, air, vector( mosquitoes etc)
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