Correct Answer: A

Rationale: The correct answer is A: Diabetic retinopathy. This is because diabetic retinopathy is a leading cause of blindness in adults over 40, resulting from diabetes affecting blood vessels in the retina. Trauma (B) is a common cause of visual impairment but not as prevalent as diabetic retinopathy in this age group. Macular degeneration (C) primarily affects older individuals, typically over 50, rather than those over 40. Cytomegalovirus (D) is a cause of blindness in immunocompromised individuals, not specific to the age group mentioned. Glaucoma (E) is a leading cause of blindness worldwide but is more common in older adults and not specifically over 40.

Correct Answer: C

Rationale: Rationale: Option C is correct because adequate hydration helps prevent hypercalcemia by promoting the excretion of excess calcium in the urine. This reduces the risk of calcium buildup in the blood. Consuming 2 to 4 liters of fluid daily ensures proper hydration, which is crucial for patients at risk for hypercalcemia. Stool softeners (Option A) are not contraindicated and can help prevent constipation, which may be a side effect of some cancer treatments. Laxatives (Option B) should not be taken daily as they can lead to dehydration and electrolyte imbalances. Restricting calcium intake (Option D) is not the primary intervention for preventing hypercalcemia; rather, maintaining adequate hydration is key.

Correct Answer: C

Rationale: The correct answer is C because providing realistic emotional preparation for death is a priority in caring for a patient with a terminal illness like leukemia. This helps the patient and their loved ones cope with the impending loss and make the most of the time left. Option A focuses solely on prolonging life, which may not align with the patient's wishes. Option B, providing financial advice, is important but not the top priority in this situation. Option D, maximizing family social interactions after the patient's death, is not immediate and does not address the patient's emotional needs.

Correct Answer: C

Rationale: The correct answer is C: "You are anxious about the surgery. Do you see smoking as helping?" This response acknowledges the patient's anxiety and invites him to explore his reasons for wanting to smoke, opening up a dialogue and potentially uncovering underlying issues. It also avoids judgment or direct orders, fostering a therapeutic nurse-patient relationship. Explanation of why the other choices are incorrect: A: "Smoking is the reason you are here." - This response is blaming and may increase the patient's guilt or anxiety, hindering effective communication. B: "The doctor left orders for you not to smoke." - This response is authoritative and may lead to resistance or defensiveness from the patient, rather than addressing his concerns. D: "Smoking is OK right now, but after your surgery it is contraindicated." - This response is unclear and may send mixed messages to the patient, potentially leading to confusion or misunderstanding.

Correct Answer: A

Rationale: Step 1: Finasteride is a medication that works by decreasing glandular cellular activity and reducing prostate size. Step 2: Dietary supplements can interact with finasteride, potentially affecting its effectiveness or causing adverse effects. Step 3: Reporting the planned use of dietary supplements to the physician ensures proper monitoring and adjustment of the treatment plan. Step 4: This communication promotes patient safety and optimal therapeutic outcomes. Therefore, choice A is correct as it emphasizes the importance of informing the physician about dietary supplement use to ensure the efficacy and safety of finasteride. Choices B, C, and D are incorrect as they do not directly relate to the mechanism of action or specific considerations of finasteride therapy.