Correct Answer: D

Rationale: The correct answer is D: "Don't blow your nose for 2 to 3 weeks." After mastoid surgery, blowing the nose can increase pressure in the surgical area and disrupt healing. Here's the rationale: 1. Blowing the nose can increase pressure in the surgical area and lead to complications. 2. Avoiding blowing the nose helps prevent infection and reduces the risk of damaging the surgical site. 3. It is essential to follow this instruction to promote proper healing and reduce the chances of postoperative complications. In summary, the other choices are incorrect because inducing a sneeze, exercising, and avoiding side-lying position do not directly relate to the specific care needs after mastoid surgery.

Correct Answer: A

Rationale: The correct answer is A. Overuse of topical anesthetics can soften the cornea and damage the eye. Topical anesthetics numb the eye, masking pain and potentially leading to overuse. This can prevent the patient from recognizing potential issues like infection or further injury. Additionally, prolonged use can interfere with the cornea's ability to heal properly. Choices B, C, and D are incorrect because they do not address the specific risks associated with using topical anesthetics in the eye. Option B focuses on peripheral vision loss, which is not a direct consequence of using topical anesthetics. Choice C mentions controlled substances, which is not relevant to the situation. Option D acknowledges the patient's request but does not educate the patient on the potential harm of overusing topical anesthetics.

Correct Answer: A

Rationale: The correct answer is A: Rate of growth. Malignant cancer cells grow and divide rapidly compared to benign cells. Benign cells are usually slow-growing and have a well-defined border, while malignant cells grow uncontrollably and invade surrounding tissues. The other choices are incorrect because: B: Ability to cause death - Both benign and malignant cells have the potential to cause harm, but the key difference lies in their growth rate and invasiveness. C: Size of cells - The size of cells does not necessarily differentiate between benign and malignant cells. D: Cell contents - While malignant cells may have abnormal cell contents, this is not a defining characteristic when differentiating between benign and malignant cells. E: Ability to spread - While the ability to spread is a key characteristic of malignant cells, the primary differentiating factor in this question is the rate of growth.

Correct Answer: C

Rationale: The correct answer is C: Sudden cessation of output from the drainage device. This is crucial because it can indicate a potential complication like a blocked drain or infection, requiring immediate medical attention to prevent further issues. Other choices like fatigue (A) are common after surgery but not urgent. Temperature elevation (B) may indicate infection but is not as critical as sudden cessation of drainage. Gradual decline in output (D) is expected as the drainage decreases over time, so it doesn't require immediate reporting.

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.