A nurse has only a regular blood pressure cuff when conducting a health screening for all of the residents of a community. Which of the following may be lacking when obtaining blood pressure readings?

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Question 1 of 5

A nurse has only a regular blood pressure cuff when conducting a health screening for all of the residents of a community. Which of the following may be lacking when obtaining blood pressure readings?

Correct Answer: B

Rationale: The correct answer is B: Sensitivity. The regular blood pressure cuff may lack sensitivity when obtaining blood pressure readings because it may not accurately detect subtle changes in blood pressure levels. Sensitivity refers to the ability of a test to correctly identify individuals with the condition (high blood pressure, in this case). Since a regular cuff may not be as precise as specialized equipment, it could miss detecting high blood pressure in some individuals, leading to inaccurate readings. A: Reliability - Reliability refers to the consistency of measurements. While a regular cuff may be consistent in its readings, it may not be sensitive enough to accurately detect high blood pressure in all individuals. C: Specificity - Specificity refers to the ability of a test to correctly identify individuals without the condition. The regular cuff's lack of sensitivity may not impact its specificity. D: Validity - Validity refers to the accuracy of a test in measuring what it is intended to measure. The regular cuff may still provide valid blood pressure readings within

Question 2 of 5

A teacher recommends that surveys to obtain data on drug use be given to high school students when they meet for various school organizations. Which of the following best describes why the nurse would reject this suggestion?

Correct Answer: D

Rationale: The correct answer is D: This method of data collection would result in selection bias. The rationale for this is that by only surveying high school students who meet for various school organizations, the sample is not representative of the entire high school population. This can lead to skewed results and an inaccurate representation of drug use among all high school students. A: Classification bias refers to errors in the classification of study subjects. This is not applicable in this scenario. B: Confounding bias occurs when an extraneous variable is associated with both the exposure and the outcome. This is not relevant to the method of data collection proposed. C: Personal bias involves the researcher's own subjective beliefs influencing the study. This is not directly related to the method of data collection being discussed. In summary, choice D is the correct answer because using surveys only with students who are part of school organizations introduces selection bias, leading to an unrepresentative sample and potentially inaccurate results.

Question 3 of 5

A nurse is planning to host a health screening at a large urban mall. Which of the following variables will help the nurse determine which screenings should be included? (Select all that apply.)

Correct Answer: B

Rationale: Rationale: B: Health problems for which the specific population is at risk - This variable is crucial in determining the screenings to include as it helps the nurse focus on addressing the most relevant health concerns for the population. Summary of Incorrect Choices: A: Adequate space for persons to lie down after testing until side effects are reduced - While important for safety, this is not directly related to determining which screenings to include. C: Whether adequate privacy can be obtained for the invasive or embarrassing procedures - Privacy is important but does not directly impact the choice of screenings. D: Whether health care providers are available to follow up on any positive screening results - Follow-up care is essential but does not guide the selection of screenings.

Question 4 of 5

Which description of disease activity in a single area corresponds to endemic levels of disease?

Correct Answer: A

Rationale: The correct answer is A because endemic disease refers to the constant presence or usual prevalence of a disease in a specific geographic area. Choice A describes a consistent number of cases each week, which aligns with the definition of endemic disease. Choices B, C, and D all indicate fluctuations in the number of cases that do not reflect a stable endemic level. Choice B suggests a very low usual prevalence, choice C shows a sudden spike in cases, and choice D indicates a significant increase from the usual worldwide cases, none of which are characteristic of endemic disease.

Question 5 of 5

Which action highlights Florence Nightingale’s role as an epidemiologist?

Correct Answer: B

Rationale: The correct answer is B because connecting poor sanitation with negative health outcomes is a key aspect of epidemiology, which focuses on understanding patterns of health and disease in populations. Florence Nightingale's work in highlighting the link between sanitation and health outcomes during the Crimean War revolutionized public health practices. Choice A is incorrect because dressing soldiers' infected wounds is more related to nursing care rather than epidemiology. Choice C is incorrect as developing training schools for nurses and midwives is related to nursing education, not epidemiology. Choice D is incorrect as changing linens and bathing clients are also more related to nursing care rather than epidemiology.

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