Correct Answer: D

Rationale: Correct! Community health nursing involves a broad scope of activities that focus on promoting and preserving the health of populations rather than individuals. This includes leading support groups, providing home care, and educating communities. The other options represent different aspects of nursing care such as home health nursing, wound care, and maternal-child health - which are not exclusive to community health nursing.

Correct Answer: B

Rationale: Problem-solving is an effective method to enable midwives to apply the knowledge gained in actual practice. By engaging in problem-solving activities during the seminar, midwives can enhance their critical thinking skills and directly apply the information to real-life scenarios they may encounter in community diagnosis. Choice A (lecture) is less effective as it primarily involves passive listening and may not provide the hands-on experience needed for practical application. Choice C (group discussion) can be helpful for sharing perspectives but may not directly translate to practical application as problem-solving would. Choice D (nominal group technique) focuses more on generating ideas and reaching consensus rather than hands-on application of knowledge.

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: 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: B

Rationale: The correct answer is B, Hepatitis B. The Hepatitis B vaccine is crucial for pregnant women to prevent transmission of the virus to the baby during childbirth. Option A, MMR (Measles, Mumps, Rubella) vaccine, is not indicated during pregnancy. Option C, Human papillomavirus vaccine, is recommended for prevention of HPV infections but is not specifically indicated during pregnancy. Option D, Pneumococcal vaccine, is important for certain populations but is not the priority vaccine for a pregnant woman in this scenario.