Correct Answer: B

Rationale: The social determinants of health refer to the conditions in which people are born, grow, live, work, and age, impacting their health outcomes. These factors include social, economic, and environmental influences that play a crucial role in shaping health disparities and overall well-being.

Correct Answer: D

Rationale: The aorta is not a vein; it is the main artery in the body that carries oxygenated blood from the heart to the rest of the body. In parenteral cannulation, major veins like the basilic vein, femoral vein, and subclavian vein are typically used for access. Therefore, the correct answer is the aorta, as it is an artery and not a vein used for cannulation.

Correct Answer: B

Rationale: Low literacy levels among patients present a common challenge in promoting health literacy. When individuals have low literacy levels, it becomes difficult for them to understand health information, leading to barriers in effectively promoting health literacy.

Correct Answer: A

Rationale: The primary focus of public health is to prevent disease and promote health at the population level. This includes implementing interventions and policies that aim to improve the overall health of communities, rather than focusing solely on individual care or education. By addressing the root causes of health issues and promoting wellness, public health efforts strive to create healthier environments and populations.

Correct Answer: A

Rationale: Hand hygiene is considered the most effective method for preventing the spread of diseases. Regular handwashing with soap and water for at least 20 seconds can help remove germs and reduce the risk of infections. While vaccination, quarantine, and the use of personal protective equipment are also important in disease control, hand hygiene is fundamental and easily accessible for everyone to practice in daily life.