Correct Answer: A

Rationale: Newborns are at the highest risk for hepatitis B virus due to potential transmission from the mother. The hepatitis B virus can be transmitted from an infected mother to her baby during childbirth. Children born to mothers infected with hepatitis B are at the highest risk of acquiring the infection. Choices B, C, and D are at lower risk compared to a newborn as they are less likely to have been exposed to the virus during childbirth.

Correct Answer: C

Rationale: The correct answer is C: Diarrhea. Ranitidine, which is used to treat peptic ulcer disease, can lead to gastrointestinal disturbances such as diarrhea. Choices A, B, and D are incorrect. Hypertension and hypotension are not common side effects of ranitidine. Constipation is also not a typical side effect associated with ranitidine use.

Correct Answer: C

Rationale: The main objective of the Expanded Program on Immunization (EPI) is to eliminate vaccine-preventable diseases. While providing healthcare to all individuals and reducing child mortality are important goals, the primary focus of EPI is specifically on preventing diseases through immunization. Promoting healthy lifestyles, although beneficial, is not the primary aim of the EPI.

Correct Answer: C

Rationale: The correct answer is C: health beliefs and practices. Health beliefs and practices directly influence a client's willingness and ability to participate in care. Understanding a client's health beliefs and practices helps the nurse tailor the care plan to align with the client's values and preferences. Choice A, environment, though important, may not be the most critical factor in individualizing care. Choice B, educational attainment, is relevant but not as significant as understanding the client's health beliefs and practices. Choice D, health status, is essential but does not address the individualization of care and maximizing participation as directly as health beliefs and practices.

Correct Answer: B

Rationale: The correct first step in planning a health promotion campaign is to assess the needs of the community. By understanding the community's specific health needs, preferences, and resources, the nurse can tailor the campaign effectively. Developing educational materials (choice A) should come after assessing needs to ensure relevance. Implementing interventions (choice C) and evaluating outcomes (choice D) should also follow the assessment phase to measure the impact of the campaign accurately.