A community health nurse is preparing an in-service for staff to define the conditions of causation in epidemiology studies. Which of the following descriptions should the nurse use to define a cessation of exposure to establish causation?
"When the exposure is decreased or eliminated, the risk of disease declines or is eliminated."
"The exposure must come before the disease develops.
"A relationship is biologically possible, and it makes sense."
"Increased exposure increases the risk of developing the disease."
The Correct Answer is A
Choice A: "When the Exposure is Decreased or Eliminated, the Risk of Disease Declines or is Eliminated."
This statement accurately describes the concept of cessation of exposure in establishing causation. According to the Bradford Hill criteria, if a factor is truly causal, reducing or eliminating exposure to that factor should lead to a decrease in the incidence of the disease. This principle helps to confirm the causal relationship between the exposure and the disease.
Choice B: "The Exposure Must Come Before the Disease Develops."
This statement refers to the temporal relationship criterion in the Bradford Hill criteria, which states that for an exposure to be considered causal, it must precede the onset of the disease. While this is an important aspect of establishing causation, it does not specifically address the concept of cessation of exposure.
Choice C: "A Relationship is Biologically Possible, and it Makes Sense."
This statement pertains to the biological plausibility criterion, which suggests that the observed association between an exposure and a disease should be consistent with existing biological and medical knowledge. While biological plausibility is crucial for establishing causation, it does not directly relate to the cessation of exposure.
Choice D: "Increased Exposure Increases the Risk of Developing the Disease."
This statement describes the dose-response relationship, another criterion in the Bradford Hill framework. It indicates that a greater level of exposure to a risk factor should correspond to a higher risk of developing the disease. Although this is an important aspect of causation, it does not specifically address the cessation of exposure.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A Reason:
A social worker consult can provide valuable resources and support for managing the care of a mentally ill parent. Social workers can assist with navigating healthcare systems, accessing community resources, and providing emotional support. However, this referral may not provide the immediate peer support and shared experiences that a support group offers. Social workers are excellent for long-term planning and resource management but may not address the immediate emotional needs as effectively as a support group.
Choice B Reason:
A support group is an ideal first-level support for someone feeling overwhelmed and exhausted from caregiving responsibilities. Support groups offer a space for individuals to share their experiences, receive emotional support, and learn coping strategies from others in similar situations. This peer support can be incredibly validating and comforting, helping the client feel less isolated and more understood. Support groups can provide immediate relief and practical advice, making them a highly effective initial referral.
Choice C Reason:
Referring the client to a psychiatrist is important for addressing any potential mental health issues, such as depression or anxiety, that may arise from the stress of caregiving. Psychiatrists can provide medication management and therapeutic interventions. However, this referral may not offer the immediate peer support and shared experiences that a support group provides. While psychiatric care is crucial, it may be more appropriate as a follow-up referral after addressing the client's immediate need for emotional support.
Choice D Reason:
A life coach can help individuals set goals, develop strategies for personal growth, and improve overall well-being. However, life coaching may not be the most appropriate referral for someone dealing with the specific emotional and practical challenges of caregiving for a mentally ill parent. Life coaches typically focus on personal development and achieving future goals, which may not address the immediate emotional support needs of the client.
Correct Answer is A
Explanation
Choice A: Hearing Loss
Hearing loss is a common pathophysiology among manual labor workers due to exposure to high levels of noise in the workplace. Prolonged exposure to loud machinery, tools, and equipment can lead to noise-induced hearing loss (NIHL). This condition is preventable with proper use of hearing protection and adherence to occupational safety guidelines.
Choice B: Multiple Sclerosis
Multiple sclerosis (MS) is a chronic autoimmune disease that affects the central nervous system. It is not typically associated with environmental pollutants or hazardous exposure in the workplace. MS is believed to be caused by a combination of genetic and environmental factors, but it is not a common condition among manual labor workers due to occupational hazards.
Choice C: Influenza
Influenza is a viral infection that affects the respiratory system. While manual labor workers can contract influenza, it is not directly related to hazardous exposure or environmental pollutants in the workplace. Influenza is more commonly spread through person-to-person contact and is preventable through vaccination and good hygiene practices.
Choice D: Alopecia
Alopecia refers to hair loss, which can be caused by various factors including genetics, autoimmune conditions, and stress. It is not typically associated with hazardous exposure or environmental pollutants in the workplace. Manual labor workers are not at a higher risk of developing alopecia due to their occupational environment.
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