What is true about FAS and NAS?

Choice A reason:

Heat facilitates the drainage of mucus for a premature newborn. This is incorrect because heat does not affect mucus drainage. Mucus drainage is more related to suctioning and hydration.

Choice B reason:

The newborn has a small body surface for his weight. This is incorrect because a small body surface area for weight would indicate a large newborn, not a premature one. A large newborn would have less risk of heat loss than a small one.

Choice C reason:

The newborn's temperature control mechanism is immature. This is correct because premature newborns have immature thermoregulation and are prone to hypothermia. Placing the newborn in an incubator helps maintain a stable temperature and prevent further complications.

Choice D reason:

Heat increases the flow of oxygen to the newborn's extremities. This is incorrect because heat does not directly affect oxygen delivery. Oxygen delivery is more related to ventilation, perfusion, and hemoglobin levels. The question is about a premature newborn who has signs of respiratory distress, such as nasal flaring, intercostal retractions, expiratory grunting, and mild cyanosis. These signs indicate that the newborn is having difficulty breathing and may have a condition such as respiratory distress syndrome, transient tachypnea of the newborn, or meconium aspiration syndrome. The nurse should place the newborn in an incubator to provide warmth and prevent heat loss, which can worsen respiratory distress. The nurse should also monitor the newborn's vital signs, oxygen saturation, blood gases, chest x-ray, and neonatal abstinence scoring system if indicated. The nurse should be prepared to administer oxygen, surfactant, or mechanical ventilation as ordered.

Choice A reason:

Sleepiness is not a symptom of withdrawal in newborns. Sleepiness may be caused by other factors such as hypoglycemia, hypothermia, or infection.

Choice B reason:

Constipation is not a symptom of withdrawal in newborns. Constipation may be caused by dehydration, formula intolerance, or lack of bowel stimulation.

Choice C reason:

Irritability is a symptom of withdrawal in newborns. Irritability may manifest as excessive crying, jitteriness, tremors, or increased muscle tone. Irritability is caused by the overstimulation of the central nervous system due to the absence of the drug that the newborn was exposed to in utero.

Choice D reason:

Absent or startle reflex is not a symptom of withdrawal in newborns. Absent or startle reflex may indicate neurological damage, hypoxia, or brachial plexus injury. The startle reflex, also known as the Moro reflex, is a normal response to sudden stimuli in newborns.