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.

Correct Answer: B

Rationale: The correct action the nurse should take first when observing variable decelerations in the fetal heart rate is to reposition the client from side to side. Variable decelerations are often caused by umbilical cord compression, and repositioning the client can relieve pressure on the cord. Administering oxygen, increasing the IV infusion rate, and notifying the provider can be appropriate actions but repositioning the client takes priority in addressing variable decelerations.

Correct Answer: B

Rationale: Correct answer: Option B. Betamethasone is a glucocorticoid used to promote fetal lung maturity and reduce the risk of respiratory distress syndrome in preterm infants. Option A is incorrect because betamethasone does not prevent contractions. Option C is incorrect as betamethasone does not prevent early labor but helps improve fetal lung development. Option D is incorrect as betamethasone does not increase the baby's weight.

Correct Answer: D

Rationale: Terbutaline is a tocolytic medication used to stop uterine contractions. The client stating that the contractions have stopped indicates that the medication is effective. Choices A, B, and C are incorrect because feeling stronger contractions, a racing heart, or decreased fetal movement are not signs of terbutaline effectiveness in managing preterm labor.

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.