Correct Answer: D

Rationale: Skim milk is a reliable source of Vitamin B12, which is essential for the health of both the mother and the developing fetus. While figs, broccoli, and stewed tomatoes are nutritious foods, they are not significant sources of Vitamin B12. Figs are a good source of fiber and other vitamins, broccoli is rich in Vitamin C and K, and stewed tomatoes are high in Vitamin C and antioxidants, but they do not contain Vitamin B12 as much as skim milk does.

Correct Answer: D

Rationale: The correct answer is D: Altered patterns of urinary elimination related to nocturia. Nocturia increases the risk of falls in elderly clients due to frequent nighttime trips to the bathroom. Choice A is incorrect because while decreased vision can contribute to falls, nocturia poses a more direct risk. Choice B is incorrect as fatigue may affect mobility but is not as directly linked to falls as nocturia. Choice C is incorrect as impaired gas exchange is not typically associated with an increased risk of falls.

Correct Answer: C

Rationale: When evaluating the therapeutic effectiveness of digoxin in a client with heart failure, the nurse should expect to find improved respiratory status and increased urinary output. Digoxin helps improve cardiac output and reduces fluid accumulation, leading to improved breathing and increased urinary output. Choices A, B, and D are incorrect because diaphoresis with decreased urinary output, increased heart rate with increased respirations, and decreased chest pain with decreased blood pressure are not indicative of the therapeutic effectiveness of digoxin in heart failure management.

Correct Answer: B

Rationale: Swollen, bleeding gums are a classic sign of scurvy, which is caused by a deficiency in Vitamin C. Dry, red conjunctiva, inflammation of the tongue, and pale, brittle nails are not specific manifestations of Vitamin C deficiency, making them incorrect choices.

Correct Answer: C

Rationale: Performing frequent oral care with a tooth sponge is the most appropriate nursing measure in this situation. It helps maintain oral hygiene, prevent dryness, and provide comfort for a client with an NG tube. Allowing the client to melt ice chips may not be suitable immediately post-surgery due to potential risks. Providing mints or swabbing the mouth with glycerin swabs may not address the need for proper oral care and hygiene, which is essential for a client with an NG tube.