A nurse is reinforcing teaching with a mother who is bottle feeding her newborn with formula.Which of the following statements should the nurse include in the teaching?

Choice A rationale

Lecithin/sphingomyelin (L/S) ratio does not indicate genetic disorders; it's used to assess fetal lung maturity.

Choice B rationale

The test does not determine placental function. It specifically evaluates fetal lung maturity through the ratio of lecithin to sphingomyelin in amniotic fluid.

Choice C rationale

The test is not used to assess the risk of Rh incompatibility. The L/S ratio focuses on lung development rather than blood compatibility issues.

Choice D rationale

The L/S ratio assesses the baby's lung maturity, indicating if the lungs produce enough surfactant for proper function after birth.

Hypoglycemia is most likely given the newborn's jitteriness, weak cry, and mottled extremities, all of which are signs of low blood sugar. The newborn's large birth weight (4,366 g) further increases the risk of hypoglycemia. Immediate feeding is crucial to increase blood sugar levels, and phototherapy can help manage any potential jaundice, which is often associated with hypoglycemia.

Feeding the newborn is essential to provide glucose and stabilize blood sugar levels. Monitoring phototherapy ensures effective treatment of jaundice, which often coexists with hypoglycemia in newborns.

Assessing skin integrity is necessary to prevent complications from jaundice and ensure proper phototherapy response. Monitoring bilirubin levels helps track jaundice severity and the effectiveness of treatment.

Kernicterus, a severe form of jaundice, is less likely because the newborn's symptoms primarily indicate hypoglycemia. Neonatal Abstinence Syndrome, due to maternal drug use, typically involves different symptoms such as irritability, excessive crying, and poor feeding. Congenital Syphilis is ruled out as the mother was treated and tests for syphilis are negative.