Correct Answer: B

Rationale: A blood glucose level of 30 mg/dL in a newborn is significantly low and indicates hypoglycemia, which can be dangerous in a newborn. Hypoglycemia in a newborn can lead to neurological issues and requires immediate attention. The other findings provided, such as a respiratory rate of 50/min, blood pressure of 60/40 mm Hg, and a heart rate of 140/min, are within normal ranges for a newborn and do not require immediate reporting unless accompanied by clinical signs of distress.

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: C

Rationale: The correct answer is C: 'Thin with loose skin.' Postmature newborns are typically thin with loose skin due to prolonged gestation. This may result from placental insufficiency, leading to reduced subcutaneous fat stores. Choices A, B, and D are incorrect. Soft, flexible ear cartilage (choice A) is a normal finding in newborns. Smooth soles without creases (choice B) are also typical in newborns. Vernix caseosa covering the body (choice D) is a protective, waxy coating found on newborns, which may be present in postmature infants as well.

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: B

Rationale: Newborns who are large for gestational age (LGA) are at risk for hypoglycemia due to increased insulin production. Hyperbilirubinemia (Choice A) is more commonly associated with ABO or Rh incompatibility. Hypercalcemia (Choice C) is not a common finding in LGA newborns. Hypothermia (Choice D) may occur in newborns who are small for gestational age (SGA) due to a lack of subcutaneous fat for insulation, but it is not typically associated with LGA newborns.