A pregnant woman at 37 weeks of gestation has had ruptured membranes for 26 hours. A cesarean section is performed for failure to progress. The fetal heart rate (FHR) before birth is 180 beats per minute with limited variability. At birth, the newborn has Apgar scores of 6 and 7 at 1 and 5 minutes and is noted to be pale and tachypneic. Based on the maternal history, what is the most likely cause of this newborn's distress?

Choice A reason: Elevated blood pressure is a hallmark sign of preeclampsia, which is a hypertensive disorder of pregnancy that can cause serious complications, such as eclampsia, HELLP syndrome, or placental abruption. The nurse should monitor the client's blood pressure regularly and report any readings above 140/90 mm Hg to the provider.

Choice B reason: Increased urine output is not a sign of preeclampsia, but rather a normal physiological change of pregnancy, as the renal blood flow and glomerular filtration rate increase. A client with preeclampsia may have decreased urine output, which can indicate renal impairment or oligohydramnios.

Choice C reason: Joint pain is not a sign of preeclampsia, but rather a common discomfort of pregnancy, as the hormones relaxin and progesterone loosen the ligaments and joints. A client with preeclampsia may have epigastric pain, which can indicate liver involvement or impending eclampsia.

Choice D reason: Vaginal discharge is not a sign of preeclampsia, but rather a normal occurrence of pregnancy, as the cervical glands secrete more mucus to protect the uterus from infection. A client with preeclampsia may have vaginal bleeding, which can indicate placental abruption or disseminated intravascular coagulation.

Choice A reason: Erythroblastosis fetalis is the correct answer, as it is a hemolytic disease of the newborn that occurs when the mother is Rh-negative and the newborn is Rh-positive, and the maternal antibodies cross the placenta and destroy the newborn's red blood cells, causing anemia, jaundice, and edema. Rh0 (D) immunoglobulin is an injection that prevents the formation of Rh-positive antibodies in the mother, and reduces the risk of erythroblastosis fetalis in the current or subsequent pregnancies.

Choice B reason: Hypobilirubinemia is not the correct answer, as it is a low level of bilirubin in the blood that can cause pale skin, poor feeding, or lethargy. Hypobilirubinemia is not related to the Rh factor or the Rh0 (D) immunoglobulin injection, and it is not a common or serious complication in the newborn.

Choice C reason: Biliary atresia is not the correct answer, as it is a congenital defect of the bile ducts that prevents the flow of bile from the liver to the intestine, causing jaundice, dark urine, and clay-colored stools. Biliary atresia is not related to the Rh factor or the Rh0 (D) immunoglobulin injection, and it is not a preventable complication in the newborn.

Choice D reason: Transient clotting difficulties is not the correct answer, as it is a bleeding disorder that occurs due to the deficiency of vitamin K, which is essential for the synthesis of clotting factors. Transient clotting difficulties is not related to the Rh factor or the Rh0 (D) immunoglobulin injection, and it is preventable by administering vitamin K to the newborn.