A nurse is investigating a mumps outbreak among school-age children.
Using the epidemiological triangle, the nurse should identify which of the following as the host?
The virus.
The vaccine.
The school.
The children.
The Correct Answer is D
Choice A rationale
In the epidemiological triangle, the virus is considered the agent, not the host.
Choice B rationale
The vaccine is a form of intervention to prevent the disease, not the host.
Choice C rationale
The school could be considered the environment in which the host (the children) and the agent (the virus) interact, but it is not the host itself.
Choice D rationale
This is the correct answer. In the context of a mumps outbreak among school-age children, the children are the hosts. They are the ones who can become infected with the mumps virus.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","C","D"]
Explanation
Choice A rationale: Herpes zoster, also known as shingles, is not a notifiable disease. It is caused by the varicella-zoster virus, the same virus that causes chickenpox. After a person recovers from chickenpox, the virus stays dormant in the body and can reactivate years later, causing shingles.
Choice B rationale: Elevated lead levels in a child is a notifiable condition. Lead poisoning can cause serious health problems, particularly in children, and public health departments track cases to identify sources of lead and prevent further exposure.
Choice C rationale: Streptococcus pyogenes, also known as Group A Streptococcus, can cause a variety of infections, some of which are notifiable diseases. These include invasive Group A Streptococcal disease and streptococcal toxic shock syndrome.
Choice D rationale: Tuberculosis is a notifiable disease. The Mantoux tuberculin skin test is used to detect tuberculosis infection. A reddish induration greater than 10mm, especially in a client with symptoms of tuberculosis and a history of travel to an area where tuberculosis is endemic, is suggestive of tuberculosis infection.
Correct Answer is A
Explanation
Choice A rationale
Airborne precautions are recommended for a client who has laryngeal tuberculosis. This is because tuberculosis is an airborne disease, meaning it is spread through the air when a person with active tuberculosis in their lungs or throat coughs, sneezes, speaks, or sings.
Choice B rationale
A protective environment is not specifically required for a client with laryngeal tuberculosis. This type of precaution is typically used for patients who are severely immunocompromised, such as those undergoing stem cell transplants.
Choice C rationale
Contact precautions are not necessary for a client with laryngeal tuberculosis. These precautions are used for diseases that are spread by direct or indirect contact, which is not the case with tuberculosis.
Choice D rationale
Droplet precautions are not recommended for a client with laryngeal tuberculosis. These precautions are used for diseases that are spread through droplets in the air, such as influenza or pertussis, but tuberculosis requires airborne precautions due to the smaller size and longer airborne life of the tuberculosis bacteria.
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