Correct Answer: B

Rationale: The correct answer is B: Poor people. Focusing on poor people is likely to cause the most improvement in core measures because individuals living in poverty often face multiple barriers to accessing healthcare and have higher rates of chronic conditions. By targeting this group, the nurse can address social determinants of health, improve healthcare access, and address disparities in healthcare outcomes. Other choices (A, C, D) are not as impactful as poverty is a significant factor influencing health disparities.

Correct Answer: C

Rationale: The correct answer is C: Formula intolerance. When a patient develops diarrhea shortly after starting enteral feeding, formula intolerance is the most likely cause. This can occur due to the patient's inability to tolerate certain ingredients in the formula, leading to gastrointestinal upset. Antibiotics (choice A) and Clostridium difficile (choice B) typically take longer to cause diarrhea. Bacterial contamination (choice D) would usually result in more severe symptoms beyond just diarrhea. In this scenario, formula intolerance is the most logical explanation for the immediate onset of diarrhea after starting enteral feeding.

Correct Answer: C

Rationale: Rationale for Correct Answer (C): The nurse can presume the patient has candidiasis since miconazole is commonly used to treat fungal infections like vaginal yeast infections caused by Candida. This medication works by stopping the growth of the fungus. Therefore, the patient's use of miconazole indicates a probable diagnosis of candidiasis. Summary of Incorrect Choices: A (Bacterial vaginosis): Miconazole is not used to treat bacterial infections like bacterial vaginosis, which is caused by an imbalance of bacteria in the vagina. B (HPV): Miconazole is not used to treat viral infections like HPV, which is a sexually transmitted infection caused by certain types of human papillomavirus. D (TSS): Miconazole is not used to treat toxic shock syndrome, which is a severe complication of certain bacterial infections and is not typically associated with miconazole use.

Correct Answer: A

Rationale: The correct answer is A: Prepare an advance directive. This allows the patient to document their healthcare preferences in advance, ensuring their wishes are known and honored as the disease progresses. It provides clear instructions for healthcare providers and family members, reducing potential conflicts and ensuring the patient's autonomy is respected. Choice B is incorrect as designating an MRP focuses on medical decision-making but may not capture the full range of the patient's care preferences. Choice C involves collaboration with an organization, which may not fully represent the patient's individual wishes. Choice D is incorrect as witnesses are not always necessary for providing instructions, and the presence of witnesses does not guarantee that the patient's wishes will be followed accurately.

Correct Answer: B

Rationale: The correct answer is B: Montelukast (Singulair). Montelukast is a leukotriene receptor antagonist that helps prevent asthma exacerbations by reducing inflammation in the airways. It is used as a maintenance medication to control and prevent asthma symptoms. Diphenhydramine (A) is an antihistamine used for allergies, not asthma prevention. Albuterol sulfate (C) is a rescue inhaler used for acute asthma symptoms, not prevention. Epinephrine (D) is used for severe allergic reactions (anaphylaxis), not asthma prevention.