foundations of nursing test bank

Correct Answer: B

Rationale: The correct answer is B because giving a hypertonic solution enema to a patient with fluid volume excess can worsen the condition by drawing more fluid into the colon. This can lead to further fluid volume overload and electrolyte imbalances. The other choices are incorrect because: A: Normal saline enema is appropriate for constipation. C: Kayexalate enema is used to treat hyperkalemia, not hypokalemia. D: Oil retention enema is indicated for constipation to soften stool.

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.

Correct Answer: C

Rationale: Rationale for Correct Answer (C - Taper infusion gradually): 1. Tapering the infusion gradually allows for a smooth transition off PN without causing metabolic disturbances. 2. Abruptly stopping PN can lead to hypoglycemia and electrolyte imbalances. 3. Increasing the rate may cause fluid overload or hyperglycemia. 4. Hanging 5% dextrose alone does not provide adequate nutrition and may not meet the patient's needs.

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: C

Rationale: The correct answer is C because folic acid is crucial in preventing neural tube defects and anemia in the developing fetus. The nurse should teach the expectant mother about the importance of taking folic acid supplements before and during pregnancy. Folic acid is essential for proper cell division and growth, reducing the risk of birth defects. Choice A is incorrect because calcium intake is important throughout pregnancy, not just in the first trimester. Choice B is incorrect as protein intake should be adequate to support maternal and fetal growth, not decreased. Choice D is incorrect as excessive intake of vitamins and minerals can be harmful to the mother and the baby. In summary, the expectant mother should be educated on the importance of folic acid supplementation to prevent birth defects and anemia, while also ensuring a balanced diet with all essential nutrients.