Correct Answer: C

Rationale: The correct answer is C: Identifying the offending agent, if possible. This is prioritized in contact dermatitis to prevent further exposure and recurrence. By identifying the specific irritant or allergen, the nurse can guide the patient in avoiding it, leading to effective management. Choices A, B, and D are incorrect because while promoting adequate perfusion, safe use of topical antihistamines, and teaching the use of an EpiPen may be relevant in certain situations, they do not directly address the root cause of contact dermatitis, which is exposure to the offending agent.

Correct Answer: C

Rationale: The correct answer is C: Identifying the offending agent, if possible. This is prioritized in contact dermatitis to prevent further exposure and recurrence. By identifying the specific irritant or allergen, the nurse can guide the patient in avoiding it, leading to effective management. Choices A, B, and D are incorrect because while promoting adequate perfusion, safe use of topical antihistamines, and teaching the use of an EpiPen may be relevant in certain situations, they do not directly address the root cause of contact dermatitis, which is exposure to the offending agent.

Correct Answer: B

Rationale: The correct answer is B: Nausea and vomiting. Chemotherapy commonly causes gastrointestinal side effects, such as nausea and vomiting, due to its impact on rapidly dividing cells in the digestive tract. This adverse effect can significantly impact a patient's quality of life and adherence to treatment. Pruritis (A), itching, is less common and usually not a primary side effect of chemotherapy. Altered glucose metabolism (C) is a potential effect of some chemotherapeutic agents but is not the most common adverse effect. Confusion (D) is not typically associated with chemotherapy and is more commonly seen with other medications or medical conditions.

Correct Answer: C

Rationale: The correct answer is C because it accurately explains the physiological change in the eye that leads to the need for bifocals. As individuals age, there is a gradual thickening of the lens of the eye, which affects the eye's ability to accommodate for near vision. This thickening makes it harder for the eye to focus on close objects, necessitating the use of bifocals to correct this near vision issue. Choices A, B, and D are incorrect because they do not provide a scientifically accurate explanation for the need for bifocals in older individuals. Option A is dismissive and does not address the specific change in the eye that leads to the need for bifocals. Option B implies aging as a general concept without specifying the relevant change in the eye. Option D incorrectly states that the eye gets shorter as we age, which is not the reason for needing bifocals.

Correct Answer: B

Rationale: The correct answer is B: Asian Americans. Asian Americans have a higher incidence of liver cancer compared to other population groups due to factors such as chronic hepatitis B infection and dietary aflatoxin exposure. Monitoring this group closely is essential for early detection and intervention. Incorrect choices: A: Hispanic - While Hispanics have a higher prevalence of fatty liver disease, the highest risk of liver cancer is not among this group. C: Non-Hispanic Caucasians - Caucasians have a lower incidence of liver cancer compared to Asian Americans. D: Non-Hispanic African-Americans - African-Americans have a lower risk of liver cancer compared to Asian Americans due to differences in risk factors and prevalence of hepatitis B.