The public health nurse understands that which of the following is the number one cause of death worldwide?
Chronic diseases (heart disease, cancer, stroke)
Terrorism
Infectious diseases
Injuries (accidental or purposeful)
The Correct Answer is A
A. Chronic diseases (heart disease, cancer, stroke): Non-communicable diseases (NCDs), particularly cardiovascular diseases, cancer, and stroke, are the leading causes of death globally. These diseases account for over 70% of deaths worldwide.
B. Terrorism: While terrorism causes loss of life, it does not account for nearly as many deaths as chronic diseases.
C. Infectious diseases: Infectious diseases remain a major concern, especially in developing nations, but chronic diseases surpass them as the leading cause of death.
D. Injuries (accidental or purposeful): Injuries contribute to mortality but are not the leading cause of death worldwide.
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Related Questions
Correct Answer is B
Explanation
A. Hepatitis B: Hepatitis B is a bloodborne disease, primarily spread through contact with infected bodily fluids, not through a vector.
B. Rocky Mountain spotted fever: Rocky Mountain spotted fever is a vector-borne disease transmitted by tick bites. Vectors are living organisms, such as mosquitoes or ticks, that carry infectious agents.
C. E. coli O157:H7: E. coli is a foodborne illness that spreads through contaminated food or water, not via a vector.
D. Anthrax: Anthrax is a bacterial infection that spreads through direct contact, ingestion, or inhalation of spores, not through a vector.
Correct Answer is B
Explanation
A. Number of true negatives / (true negatives + false positives): This formula is used to calculate specificity, not incidence.
B. Number of new cases in a period of time / total population × base multiple of 10: Incidence rate measures the number of new cases of a disease occurring in a population during a specific period. It is expressed per a base population size (e.g., per 1,000 or 100,000 people) to allow for comparisons across different populations.
C. Number of true positives / (true positives + false negatives): This formula is used to calculate sensitivity, not incidence.
D. Number of new cases + number of old cases in a period of time / total population × base multiple of 10: This describes prevalence, which includes both new and existing cases, not incidence.
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