exam 3 Flashcards
What is a non communicable disease
A disease that cannot be transferred from person to person.
What is actual causes of death?
provides insight into the underylying cuse of death.
3 categories of actual causes of death
noncommunicable diseases, communicable diseases, and
environmental diseases and injuries
Main noncommunicable diseases
Cardiovascular disease
* Cancers
* Depression
* Alzheimer’s
* Chronic arthritis
Leading cause of death in US
Cardiovascular diseases and cancer
represent nearly 25% of the causes of death
reflected on death certificates in the US
what is screening
use of tests on asymptomatic individuals
4 criteria for screening
- The disease produces substantiable death or disability
- Early detection is possible and improve outcome
- There is a feasible testing strategy for screening
- Screening is acceptable in terms of harms, cost and patient acceptance
Lead time bias
early detection without improved outcome
endemic
when a disease is continuously present at fairly low levels
what are two ways to break the chain of infection?
1.vaccination
2. education
Passive immunity:
Inject antibodies into individuals for short term protection
inactivated vaccines
dead organisms injected into patient to build immunity
live vaccines
weakened organisms used to stimulate cell mediated immunity and create long term protection
herd immunity
when high levels of the pop have been vaccinated the rest of the population is protected
what are some public healt tools available to adress the burden of communicable diseases
barrier protection, immunizations
what are some barrier protections
isolation, quarantine, bed nets, condoms
unaltered environment
a natural environment- earthquakes, volcanoes, hurricanes effecting the earth we didn’t change anything or do anything for them to occur.
altered environment
the result of added chemicals, or radiation such as pesticides
built environment
results of human construction
risk assessment
is a formal process that
aims to measure exposure, predict the
potential impact of known hazards, and
inform decision-making to control or respond
to unacceptable exposures to environmental
hazards
public health assessment
goes beyond a risk
assessment by including data on actual exposure in a
community
ecological risk assessment`
examines
the impacts of contaminants on
ecological systems ranging from
chemicals, to radiation, to genetically
altered crops
montreal protocal
global agreement to protect the
stratospheric ozone layer; phasing out production and
consumption of ozone-depleting substances (ODS); first
treaty to achieve universal ratification by all countries –
hugely successful in slowing and reversing the increase of
ODS in the atmosphere
interaction analysis
implies that to understand and control
the impacts of environmental exposures, it is necessary to
take into account the effect of two or more exposures