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.

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.

Correct Answer: A

Rationale: The correct answer is A: Pathogenicity. In the epidemiological triad, the agent is one of the three components that contribute to the occurrence of disease. Pathogenicity refers to the ability of an agent to cause disease in a host. This factor is crucial in understanding how diseases are transmitted and spread. Susceptibility (Choice B) refers to the host's vulnerability to the agent, not the agent itself. Reservoirs (Choice C) pertain to where the agent lives and multiplies, not the agent's characteristics. Environmental changes (Choice D) may influence disease transmission but are not specific to the agent's role in the triad.

Correct Answer: D

Rationale: The correct answer is D because sharing needles, syringes, or other equipment contaminated with blood is a known risk factor for hepatitis C transmission. By instructing individuals to avoid sharing such equipment, the nurse is addressing a direct route of transmission and promoting a key preventive measure. A is incorrect as it focuses on screening after potential exposure, not primary prevention. B is important for general hygiene but not specific to hepatitis C prevention. C is not directly related to preventing hepatitis C transmission through blood contact. In summary, choice D is the most effective primary prevention strategy for hepatitis C as it directly addresses a common mode of transmission.

Correct Answer: B

Rationale: The correct answer is B: Engaging in contact tracing. This is a secondary prevention measure because it involves identifying and monitoring individuals who have been in contact with infected individuals to prevent further spread of the disease. Contact tracing helps to contain the outbreak by isolating those who may have been exposed. A: Administering immunizations is a primary prevention measure aimed at preventing the disease in the first place. C: Providing direct care to infected individuals is a tertiary prevention measure focused on treating the disease and its complications. D: Educating the public about disease transmission is a primary prevention measure to raise awareness and prevent the spread of the disease.