Final answer:
A nurse working with a vulnerable population is likely working with families earning less than $15,000/year. Social Security and Medicare are targeted to assist the elderly. An increase in demand for nurses leads to higher salaries and more nursing positions.
Step-by-step explanation:
A nurse working with a vulnerable population is most likely working with families earning less than $15,000/year. Vulnerable populations often include groups who are at a higher risk due to a range of factors, including income, health disparities, or age. This is in contrast to families earning more than $50,000/year, residents of urban areas in general, or African American physicians, who are less likely to be classified as vulnerable in this context.
Social Security and Medicare are programs notably designed to assist the elderly, among other groups such as the disabled and certain younger people with specific conditions. These programs provide support that can be especially critical for those without sufficient income or family support to cover their healthcare needs.
Regarding nurses' salaries and demand, it is shown that as the demand for nursing services increases, both the equilibrium quantity of nurses and the equilibrium salary rise. This trend is depicted in various years, with median salaries increasing from $64,690 in 2010, to $67,490 in 2014, and reaching $75,330 in 2020.