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: 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: A

Rationale: The correct answer is to instruct the client to perform rapid, shallow breathing. The urge to bear down during contractions indicates the second stage of labor, and pushing prematurely can lead to complications. Rapid, shallow breathing helps prevent pushing until the cervix is fully dilated. Choice B is incorrect because preparing for an emergency cesarean birth is not indicated based on the information provided. Choice C is incorrect as pelvic tilts are not appropriate when the client is already bearing down. Choice D is incorrect since applying counterpressure to the sacrum is not the priority when the client is showing signs of advancing labor.

Correct Answer: B

Rationale: The correct answer is B because facial swelling can indicate preeclampsia, a serious condition during pregnancy that requires immediate medical attention. Constipation (choice A), heartburn (choice C), and frequent urination (choice D) are common discomforts during pregnancy and are not typically indicative of a serious complication like preeclampsia at 32 weeks of gestation.

Correct Answer: A

Rationale: The correct answer is A: Rh incompatibility. Rh immune globulin is administered to prevent the formation of antibodies in clients who are Rh-negative and have been exposed to Rh-positive fetal blood. Severe preeclampsia (choice B) is a condition characterized by high blood pressure and signs of damage to organs, not prevented by Rh immune globulin. Placental abruption (choice C) is the separation of the placenta from the uterine wall, not prevented by Rh immune globulin. Erythroblastosis fetalis (choice D) is a condition where maternal antibodies attack fetal red blood cells due to Rh incompatibility, which Rh immune globulin helps prevent.