Correct Answer: C

Rationale: The DRG manual is used to determine the reimbursement rate for medical diagnoses and treatments under the prospective payment system used by healthcare facilities. Choice A is incorrect because the DRG manual is not used to classify nursing diagnoses, but rather to group medical diagnoses for billing purposes. Choice B is incorrect as the DRG manual is not used to identify findings related to medical diagnoses, but rather to standardize payments for medical services. Choice D is incorrect as the DRG manual is not used to implement nursing care based on case management protocol, but rather to set reimbursement rates.

Correct Answer: A

Rationale: The correct answer is A: Leukopenia. Methotrexate, used in the treatment of rheumatoid arthritis, can lead to bone marrow suppression, resulting in leukopenia. This condition increases the risk of infections due to decreased white blood cell count. Choices B, C, and D are incorrect because methotrexate is not known to cause hyperglycemia, hypertension, or hypokalemia as its primary adverse effects.

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.

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.

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.