A nurse is collecting data from a late preterm newborn.
Which of the following findings should the nurse expect?

Choice A rationale

Weighing a newborn's wet diaper is an essential component of monitoring fluid balance and renal function, which is critical as neonatal abstinence syndrome (NAS) infants may have diarrhea leading to fluid loss. However, it is not the first priority action. NAS symptoms, caused by central nervous system hyperexcitability, necessitate stabilization of vital functions, with respiratory status being paramount. Normal urine output for a newborn is typically 1-3 mL/kg/hr.

Choice B rationale

Swaddling provides non-pharmacological comfort by simulating the confined uterine environment, reducing excessive stimulation, and minimizing the hyperirritability and tremors associated with central nervous system dysfunction in neonatal abstinence syndrome. While a beneficial and frequent intervention, stabilizing the newborn's physiological status, specifically respiratory effort and rate, must be assessed and secured as the immediate priority due to potential for respiratory distress.

Choice C rationale

Determining the newborn's respiratory rate is the highest priority because respiratory depression and distress are critical potential complications in a newborn experiencing neonatal abstinence syndrome, often associated with poly-drug exposure or direct effects of opioids. NAS can lead to hyperthermia and increased metabolic demand, escalating oxygen consumption. A normal newborn respiratory rate is typically 30 to 60 breaths per minute; deviations require immediate intervention.

Choice D rationale

Auscultating the newborn's bowel sounds assesses gastrointestinal motility, which can be affected by the hyper-excitability seen in NAS, potentially leading to diarrhea, poor feeding, and fluid-electrolyte imbalances. However, this assessment is secondary to ensuring adequate oxygenation and ventilation, which is always the initial and most crucial step in the hierarchy of needs for any compromised neonate experiencing withdrawal symptoms.

Choice A rationale: Weight is a crucial anthropometric measurement for evaluating a newborn's physical development, nutritional status, and overall health. It is typically recorded in grams or kilograms immediately after birth and monitored regularly. Normal birth weight is generally between 2,500 grams (5 lbs 8 oz) and 4,000 grams (8 lbs 13 oz). Deviations from this range, such as low birth weight, necessitate closer monitoring and specialized care.

Choice B rationale: The type of birth, whether vaginal, operative vaginal (e.g., forceps or vacuum assisted), or cesarean section, is a vital piece of obstetric history. This information is critical as it highlights potential risks the neonate may have encountered, such as transient tachypnea of the newborn following a C-section or trauma associated with a complicated vaginal delivery, and informs future care decisions.

Choice C rationale: The Apgar scores are a rapid, standardized assessment of five physiologic signs (Appearance, Pulse, Grimace, Activity, Respiration) used to evaluate a newborn's transition to extrauterine life. Scores are recorded at one and five minutes after birth. A score between 7 and 10 is considered normal and reassuring, while lower scores indicate the need for immediate intervention and closer observation.

Choice D rationale: Gestational age, typically determined by the last menstrual period and validated by a physical assessment (e.g., Ballard Scale), is essential for classifying the neonate as preterm, full-term, or post-term. It directly correlates with the maturity of organ systems, including the lungs and brain, and dictates the expected range of normal findings and potential risk for specific complications like hyperbilirubinemia or respiratory distress syndrome.

Choice E rationale: The heart rate is a fundamental vital sign, reflecting cardiovascular stability and is a key component of the Apgar score. Normal range for a newborn is typically 110 to 160 beats per minute. A sustained heart rate outside this range, either bradycardia or tachycardia, can signal distress, hypoxia, infection, or other underlying pathology, requiring immediate clinical investigation and intervention.

Choice F rationale: Length (or Crown-Heel length) is an important anthropometric measure recorded alongside weight and head circumference. It helps assess the newborn's growth potential and identify potential intrauterine growth restriction or genetic syndromes when plotted on standardized growth charts. Normal full-term length is generally between 45 and 55 centimeters (17.7 to 21.7 inches).