A nurse is concerned about the prevalence of tuberculosis among migrant farm workers. Which of the following activities would be best to use when implementing tertiary prevention?
Use skin tests to screen migrant health workers for tuberculosis infection.
Provide education about the prevention of tuberculosis to members of the migrant community.
Initiate directly observed therapy (DOT) for tuberculosis treatment.
Administer purified protein derivative (PPD) to contacts of those with tuberculosis.
The Correct Answer is C
Choice A reason: Skin tests are secondary screening, not tertiary treatment. DOT manages TB, per nursing standards. This errors in level. It’s universally distinct.
Choice B reason: Education is primary prevention; tertiary treats existing TB. DOT fits, per public health. This misaligns with level. It’s universally distinct.
Choice C reason: DOT treats active TB, a tertiary prevention strategy effectively. This aligns with nursing standards. It’s universally applied, distinctly post-diagnosis care.
Choice D reason: PPD screening is secondary; DOT addresses confirmed cases. This errors per prevention levels. It’s universally distinct, not treatment.
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Related Questions
Correct Answer is B
Explanation
Choice A reason: Quaternary isn’t a standard prevention level; tertiary fits confirmed STIs. This errors per nursing standards. It’s universally distinct, not recognized here.
Choice B reason: Tertiary prevention manages confirmed STIs to prevent complications. This aligns with public health standards. It’s universally applied, distinctly accurate post-diagnosis.
Choice C reason: Secondary is screening/treatment pre-confirmation; post-diagnosis is tertiary. This misaligns with nursing definitions. It’s universally distinct, not after diagnosis.
Choice D reason: Primary prevents STIs; tertiary handles confirmed cases instead. This errors per public health standards. It’s universally distinct, pre-disease focus.
Correct Answer is A
Explanation
Choice A reason: Rocky Mountain spotted fever, caused by Rickettsia rickettsii, spreads via tick bites, a classic vector-borne mechanism. Ticks transfer the bacteria during feeding, triggering fever and rash, demonstrating how vectors biologically transmit pathogens between hosts, distinguishing it epidemiologically clearly.
Choice B reason: Anthrax, from Bacillus anthracis, isn’t vector-borne but spreads via spores through direct contact, inhalation, or ingestion, like contaminated soil. No biological vector like ticks is involved; it’s an environmental exposure disease, not reliant on intermediary transmission biologically or consistently.
Choice C reason: Hepatitis B transmits through blood or bodily fluids, not vectors. It’s a viral infection from human-to-human contact, like needle sharing, lacking a biological intermediary like mosquitoes, distinguishing it from vector-borne diseases reliant on external carriers entirely for spread.
Choice D reason: E. coli O157:H7 spreads via contaminated food or water, not vectors. It’s a bacterial pathogen causing gastrointestinal illness, transmitted directly through ingestion, not biologically via insects or animals, separating it from vector-dependent disease transmission mechanisms completely and distinctly.
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