Epidemiology:
a. is a science that studies the poisonous ef-fects of chemicals.
b. explains the association between learning disabilities and exposure to lead-based paint at the cellular level.
c. helps nurses understand the strength of the association between exposure and health effects.
d. is a method for tracking the prevalence of health outcomes.
ANS: C
Epidemiology studies the incidence and prevalence of disease, helping nurses understand the strength of the association between exposure and health effects. Toxicology is the science that studies the poisonous effects of chemicals. Environmental surveillance provides data with which to track and analyze the incidence and prevalence of health outcomes. Epidemiology does not examine causes at the cellular level.
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