Correct Answer: C

Rationale: The primary function of a public health nurse is to promote and protect the health of populations. Public health nurses focus on preventing diseases, promoting healthy behaviors, and addressing health disparities within communities. Providing bedside care (choice A) is typically done by nurses in clinical settings, not public health nurses. Administering medications (choice B) is part of nursing practice but not the primary role of a public health nurse. Performing surgical procedures (choice D) is usually the responsibility of surgical nurses or healthcare providers specializing in surgery, not public health nurses.

Correct Answer: C

Rationale: Community health nurses are primarily responsible for coordinating emergency response efforts during disasters. This involves organizing and implementing strategies to address the health needs of the community in crisis situations. Providing direct patient care (Choice A) is often carried out by other healthcare professionals such as doctors and paramedics during disasters. Conducting research on disaster impacts (Choice B) is important for understanding the effects of disasters but is not the primary role of a community health nurse. Developing new healthcare policies (Choice D) is typically the responsibility of policymakers and public health officials rather than community health nurses.

Correct Answer: B

Rationale: The correct answer is B: "Increase green leafy vegetable intake." This is the best advice because green leafy vegetables are rich in folic acid, which is essential for fetal development and helps prevent neural tube defects. Choice A is not specific enough and does not address the importance of folic acid. Choice C, drinking milk with each meal, does not provide the necessary folic acid intake. Choice D, eating fish weekly, is not as crucial for preconception diet changes as increasing folic acid intake.

Correct Answer: A

Rationale: The correct answer is A: Insufficient oxygenation of the cardiac muscle. Myocardial infarction pain is primarily caused by inadequate oxygen reaching the heart muscle, leading to ischemia and tissue damage. Choices B, C, and D are incorrect because circulatory overload, left ventricular overload, and electrolyte imbalance are not the primary causes of chest pain in myocardial infarction. Circulatory overload may lead to other symptoms like edema, left ventricular overload can result in heart failure symptoms, and electrolyte imbalance may present with various manifestations, but none of these directly cause the characteristic chest pain associated with an MI.

Correct Answer: C

Rationale: In this municipality, the nursing health care plan should primarily focus on health promotion and disease prevention. This approach addresses the underlying causes of health problems, promotes overall well-being, and helps prevent illnesses before they occur. While rehabilitative and curative services are important, health promotion and disease prevention are crucial for fostering a healthier community in the long term. Therefore, choices A, B, and D are not the best options as they do not prioritize preventing health issues at the root cause.