A community health nurse is using the United States Preventive Services Task Force (USPSTF) guidelines to recommend health screenings for a client. The nurse should identify which of the following descriptions applies to Grade C screenings?
Research indicates this screening is not warranted at this time and may, in fact, be harmful.
Research indicates this screening exam has a small benefit.
There is not enough evidence to determine if this screening is helpful or not
Research indicates this screening exam is beneficial.
The Correct Answer is B
Choice A Reason:
Research indicating that a screening is not warranted at this time and may be harmful aligns with a Grade D recommendation from the USPSTF. Grade D recommendations suggest that the service has no net benefit or that the harms outweigh the benefits, and therefore, it should be discouraged.
Choice B Reason:
A Grade C recommendation from the USPSTF means that the service should be selectively offered or provided to individual patients based on professional judgment and patient preferences. There is at least moderate certainty that the net benefit is small. This means that while there is some benefit, it is not substantial enough to recommend the service for all individuals.
Choice C Reason:
The statement that there is not enough evidence to determine if a screening is helpful or not corresponds to a Grade I (Insufficient) recommendation. This grade indicates that the current evidence is insufficient to assess the balance of benefits and harms of the service. More research is needed to make a definitive recommendation.
Choice D Reason:
Research indicating that a screening exam is beneficial aligns with a Grade A or B recommendation. Grade A recommendations suggest high certainty that the net benefit is substantial, while Grade B recommendations suggest high certainty that the net benefit is moderate or there is moderate certainty that the net benefit is moderate to substantial.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A Reason:
Increased exposure increases the risk of developing the disease. This statement describes a dose-response relationship, which is another important criterion for establishing causation. It indicates that as the level of exposure to a potential cause increases, the risk of developing the disease also increases. However, this does not specifically address the temporal sequence required to establish causation.
Choice B Reason:
The exposure must come before the disease develops. This is the correct definition of a temporal relationship in epidemiological studies. For causation to be established, it is essential that the exposure to the potential cause occurs before the onset of the disease. This temporal sequence is crucial because it helps to rule out reverse causation, where the disease might influence the exposure rather than the other way around.
Choice C Reason:
When the exposure is decreased or eliminated, the risk of disease declines or is eliminated. This statement describes the concept of reversibility, which is another criterion for causation. It suggests that reducing or removing the exposure should lead to a decrease in the incidence of the disease. While important, it does not specifically define the temporal relationship.
Choice D Reason:
A relationship is biologically plausible, and it makes sense. This statement refers to biological plausibility, which means that the observed association between exposure and disease is consistent with existing biological or medical knowledge. While biological plausibility supports causation, it does not define the temporal sequence necessary to establish a causal relationship.
Correct Answer is D
Explanation
Choice A Reason:
A cluster refers to an aggregation of cases of a disease or other health-related condition in a specific area and time period that is greater than expected. Clusters are often the initial indication of an outbreak but do not describe the widespread nature of a pandemic.
Choice B Reason:
An epidemic is an outbreak of a disease that spreads quickly and affects many individuals at the same time within a specific geographic area or population. While an epidemic can be severe, it is typically confined to one region or country. The term "pandemic" is used when the disease spreads across multiple countries or continents.
Choice C Reason:
Endemic refers to the constant presence and/or usual prevalence of a disease or infectious agent within a geographic area or population group. Diseases that are endemic are consistently present but typically do not cause the widespread impact seen in pandemics.
Choice D Reason:
A pandemic is an epidemic that has spread across a large region, for instance, multiple continents or worldwide, affecting a substantial number of individuals. The COVID-19 outbreak in 2020 is a prime example of a pandemic, as it spread globally and prompted widespread disease control measures.
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