Correct Answer: B

Rationale: The correct instruction for the nurse to provide is to advise the client to apply breast milk to the nipples after feedings. Breast milk has healing properties and can help soothe sore nipples. Option A is incorrect because avoiding the use of a breast pump does not directly address nipple soreness. Option C is incorrect as feeding the newborn less frequently can lead to engorgement and further complications. Option D is incorrect as using a nipple shield during feedings may not address the underlying issue of soreness and can sometimes even worsen the situation.

Correct Answer: D

Rationale: To prevent mastitis, the nurse should instruct the client to ensure that the newborn empties one breast before switching to the other. This helps to prevent milk stasis, reducing the risk of inflammation and infection. Choice A is incorrect because feeding on demand is recommended to establish a good milk supply and prevent engorgement. Choice B is incorrect as warm compresses are usually applied before feeding to promote milk flow. Choice C is incorrect because massaging the breast after feedings can actually increase the risk of mastitis by causing further irritation.

Correct Answer: D

Rationale: The correct answer is D: Initiate phototherapy. Phototherapy is the primary treatment for a newborn with hyperbilirubinemia, as it helps to break down excess bilirubin in the skin. Administering glucose water (choice A) is not indicated for treating hyperbilirubinemia. Feeding the newborn formula (choice B) or offering sterile water (choice C) will not directly address the elevated bilirubin levels in the newborn.

Correct Answer: A

Rationale: Abdominal cramping during breastfeeding is common due to the release of oxytocin. Ibuprofen, an analgesic, is suitable for relieving discomfort. Administering oxytocin is unnecessary and may exacerbate the cramping. Placing a warm compress may not address the underlying cause of the cramping. Changing positions may provide temporary relief but does not address the cause of the cramping.

Correct Answer: B

Rationale: The correct answer is B. Calcium intake is crucial during pregnancy to support fetal bone development. The nurse should educate the client to increase their calcium intake. Choice A is incorrect because fetal movements are usually felt around 18-25 weeks, not at 12 weeks. Choice C is incorrect as exercise is generally encouraged during pregnancy, including the second trimester, as long as it is not high-impact or risky. Choice D is incorrect as folic acid intake is essential during pregnancy to prevent neural tube defects, and pregnant individuals are usually advised to increase their folic acid intake.