Which of the following would the nurse expect to assess in a newborn who develops sepsis?

Choice A: This is incorrect because lanugo is a fine, downy hair that covers the fetus in utero. It usually disappears by the 36th week of gestation, but it may persist in some preterm infants. Lanugo helps to retain body heat and protect the skin from amniotic fluid. Lanugo is not a sign of postmaturity, but of prematurity or intrauterine growth restriction.

Choice B: This is incorrect because a short, chubby appearance is typical of a term infant, who is born between 37 and 42 weeks of gestation. A term infant has a well-developed subcutaneous fat layer that gives them a rounded shape and smooth skin. A term infant also has a head circumference that is proportional to their body length and weight. A short, chubby appearance is not a sign of postmaturity, but of normal development.

Choice C: This is incorrect because vernix caseosa is a white, cheesy substance that covers the fetus in utero. It usually decreases by the 40th week of gestation, but it may remain in some term infants, especially in the skin folds. Vernix caseosa helps to moisturize and protect the skin from amniotic fluid and infection. Vernix caseosa is not a sign of postmaturity, but of term or near-term gestation.

Choice D: This is the correct answer because cracked, peeling skin is a common sign of postmaturity, which occurs when the infant is born after 42 weeks of gestation. A postmature infant has a loss of subcutaneous fat and water that results in dry, wrinkled, and desquamated skin. A postmature infant also has a large head circumference that is disproportionate to their body length and weight. Cracked, peeling skin indicates prolonged exposure to amniotic fluid and placental insufficiency.

Choice a) D5W intravenously is incorrect because this is not the preferred method of feeding for a hypoglycemic infant. D5W stands for dextrose 5% in water, which is a solution that contains glucose and water. It can be used to treat hypoglycemia by providing a source of energy and fluid to the infant. However, it has several disadvantages, such as requiring an invasive procedure, increasing the risk of infection, causing fluid overload or electrolyte imbalance, and stimulating insulin secretion, which can lead to rebound hypoglycemia. Therefore, D5W intravenously should be reserved for severe cases of hypoglycemia that do not respond to oral or enteral feeding.

Choice b) Formula via nasogastric tube is incorrect because this is not the first-line option of feeding for a hypoglycemic infant. Formula is an artificial substitute for breast milk that contains nutrients and calories to support the infant's growth and development. It can be given via nasogastric tube, which is a tube that passes through the nose and into the stomach, when the infant cannot suck or swallow effectively. However, formula has several disadvantages, such as being less digestible, less immunogenic, and less adaptable than breast milk, as well as increasing the risk of necrotizing enterocolitis, allergy, or infection. Therefore, formula via nasogastric tube should be used only when breast milk is unavailable or contraindicated.

Choice c) Breast milk is correct because this is the best and most recommended type of feeding for a hypoglycemic infant. Breast milk is the natural and optimal food for infants that contains all the nutrients and antibodies they need to grow and thrive. It can be given directly from the breast or expressed and fed by bottle or cup. Breast milk has several advantages, such as being easily digestible, enhancing immune function, promoting bonding, and adjusting to the infant's needs. Breast milk also contains lactose, which is a natural sugar that can raise the blood glucose level of the infant without causing a spike in insulin secretion. Therefore, breast milk should be offered to the hypoglycemic infant as soon as possible after birth and at regular intervals thereafter.

Choice d) Glucose water in a bottle is incorrect because this is not an appropriate type of feeding for a hypoglycemic infant. Glucose water is a solution that contains glucose and water. It can be given by bottle or cup to provide a quick source of energy to the infant. However, it has several disadvantages, such as providing no other nutrients or calories, interfering with breastfeeding, causing diarrhea or dehydration, and stimulating insulin secretion, which can lead to rebound hypoglycemia. Therefore, glucose water in a bottle should be avoided or used sparingly for mild cases of hypoglycemia that do not respond to breast milk.