A nurse is teaching a client who is at 14 weeks of gestation about expected body changes during pregnancy.
Which of the following manifestations should the nurse include in the teaching?

Choice A rationale

Body tremors are a key indicator of central nervous system (CNS) hyperirritability, which is a major component of neonatal abstinence syndrome (NAS) following in utero exposure to opioids like heroin. The newborn's immature CNS struggles to adapt after the abrupt cessation of the drug, leading to uncoordinated, jerky movements, exaggerated reflexes, and generalized irritability.

Choice B rationale

Tachypneic respirations (respiratory rate greater than 60 breaths/min) are a common sign of NAS. This occurs due to the dysregulation of the autonomic nervous system and increased metabolic rate associated with the hyperirritable state. Other respiratory signs include flaring, retractions, and frequent yawning or sneezing, reflecting CNS overstimulation.

Choice C rationale

The hyperirritability of the CNS in NAS typically leads to increased and exaggerated reflexes (hyperreflexia), such as a hyperactive Moro reflex, not decreased reflexes. Decreased reflexes would suggest CNS depression, which is characteristic of acute opioid intoxication, not the withdrawal state of NAS.

Choice D rationale

Newborns experiencing NAS are characterized by CNS hyperstimulation, leading to excessive wakefulness, irritability, and an inability to be consoled, often referred to as hyperactivity or agitation. Extreme lethargy and hypoactivity are signs of CNS depression or severe illness, which is contrary to the expected presentation of NAS.

Choice E rationale

The hyper-responsiveness of the newborn's CNS in NAS causes a characteristic high-pitched, non-stop, inconsolable crying. This shrill, distressed cry is due to the sustained state of irritability and neurological overstimulation, representing a significant manifestation of withdrawal symptoms that is distressing to both the newborn and the caregivers.

Choice A rationale

Methylergonovine is an uterotonic agent that acts on the smooth muscle of the uterus to stimulate strong, sustained contractions, which are essential for compressing the intramyometrial blood vessels and achieving hemostasis to stop postpartum hemorrhage, especially from uterine atony.

Choice B rationale

While oxygen is important for hypoxia secondary to blood loss, administering it at 2 L/min via nasal cannula is typically insufficient for a client experiencing significant hemorrhage. High-flow oxygen, such as 10 to 15 L/min via nonrebreather mask, is usually required to maximize oxygen saturation.

Choice C rationale

Starting an IV bolus of Dextrose 5.

Choice D rationale

The knee-chest position is generally used to relieve cord compression or help with the manual rotation of the fetus, but it is not an established intervention for managing postpartum hemorrhage. The client should be positioned flat with legs elevated to promote venous return and manage shock.