A newborn delivered at 38 weeks gestation is experiencing me… | 마이메르시 MyMerci
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Maternal Newborn Health
문제

A newborn delivered at 38 weeks gestation is experiencing meconium aspiration syndrome. Which nursing intervention should be the priority?

A 2-day-old newborn born via cesarean section at 38 weeks gestation presents with tachypnea, mild grunting, and nasal flaring. The respiratory rate is 70 breaths per minute, oxygen saturation is 94% on room air, and chest X-ray shows fluid in the fissures consistent with TTN.
해설
The priority is supplemental oxygen and monitoring to support respiratory function as TTN is self-limiting; other interventions are not indicated or are lower priority.
같은 주제 다음 문제A newborn is admitted to the NICU with suspected meconium aspiration syndrome (MAS). The i…이 문제가 수록된 문제집NCLEX-RN Package89,000원 · 무료 체험 가능

심화 해설

Core Nursing Explanation Key Concept Analysis: This question assesses the priority nursing intervention for a newborn with Transient Tachypnea of the Newborn (TTN). TTN is a common, self-limiting respiratory condition caused by delayed clearance of fetal lung fluid. The pathophysiology involves retained fluid in the alveoli and interstitial spaces, leading to decreased lung compliance and increased work of breathing. The clinical presentation includes tachypnea (RR >60 breaths/min), grunting, nasal flaring, and sometimes mild retractions, typically within the first few hours of life in term or late-preterm infants, often following cesarean delivery.

Answer Rationale: The correct answer is Key Point! Provide supplemental oxygen and monitor respiratory status closely. This is the priority because the primary problem is respiratory distress. The newborn's oxygen saturation is 94% on room air, which is at the lower end of the acceptable range for a newborn (typically 95-100%). Tachypnea (70 breaths/min) and signs like grunting and nasal flaring indicate increased work of breathing. Supplemental oxygen helps maintain adequate oxygenation while the infant's lungs naturally reabsorb the excess fluid. Close monitoring (vital signs, oxygen saturation, work of breathing) is essential to detect any deterioration that might require more advanced support (e.g., CPAP - Continuous Positive Airway Pressure).

Distractor Analysis:
Watch out for confusion! Option ①, "Administer bronchodilators," is incorrect because TTN is not caused by bronchospasm or airway inflammation. Bronchodilators (like albuterol) are used for conditions like bronchiolitis or asthma, not for fluid clearance issues.
Option ②, "Place the newborn in prone position," is not the priority intervention for TTN. While prone positioning can improve oxygenation in some respiratory conditions and is a key intervention for Meconium Aspiration Syndrome (MAS) to facilitate postural drainage, TTN management focuses on supportive care. The prone position is not a standard first-line treatment for TTN.
Option ④, "Encourage frequent feeding to maintain nutrition," is an important supportive measure but is not the immediate priority. The ABCs (Airway, Breathing, Circulation) of nursing care dictate that stabilizing respiration takes precedence over nutrition. Furthermore, an infant in significant respiratory distress may be at risk for aspiration if fed orally.

Related Concepts: It is crucial to differentiate TTN from other causes of newborn respiratory distress, such as Respiratory Distress Syndrome (RDS - surfactant deficiency), Pneumonia, and Pneumothorax. TTN has a benign course and usually resolves within 24-72 hours with supportive care. Concept SummaryTransient Tachypnea of the Newborn (TTN): Self-limiting respiratory disorder due to delayed clearance of fetal lung fluid. • Pathophysiology: Retained fluid in alveoli → decreased compliance → tachypnea, increased work of breathing. • Key Assessment: Tachypnea (>60/min), grunting, nasal flaring, mild retractions. Chest X-ray shows "wet lungs" (fluid in fissures, perihilar streaking). • Priority Nursing Interventions: 1) Supportive respiratory care (oxygen, monitoring), 2) Maintain thermoregulation, 3) Ensure hydration/nutrition (often IV fluids initially if tachypneic). • Expected Course: Symptoms peak around 6 hours of life and resolve within 24-72 hours. Side-by-Side Comparison!
ConditionPrimary CauseKey Features / X-rayPriority Nursing Intervention
Transient Tachypnea of the Newborn (TTN)Delayed clearance of fetal lung fluidTachypnea, grunting, flaring. X-ray: fluid in fissures, "wet lung" appearance.Supplemental O2, close monitoring, supportive care.
Respiratory Distress Syndrome (RDS)Surfactant deficiencyProgressive distress, grunting, retractions, cyanosis. X-ray: "ground-glass" appearance, air bronchograms.Administer surfactant, provide respiratory support (CPAP/ventilator).
Meconium Aspiration Syndrome (MAS)Inhalation of meconium-stained amniotic fluidRespiratory distress, barrel chest, coarse crackles. X-ray: patchy infiltrates, hyperinflation.Suction on perineum if meconium present, O2 therapy, possible ventilator support, prone positioning for drainage.
Anatomy, Physiology & Pharmacology PointsFetal Lung Fluid: During gestation, the lungs produce fluid that fills the airways. At birth, this fluid must be rapidly absorbed into the pulmonary circulation and lymphatics. Vaginal delivery helps expel some fluid via chest compression; cesarean delivery bypasses this, increasing TTN risk. • Oxygen Therapy: Goal is to maintain PaO2 50-80 mmHg or SpO2 90-95% in a term newborn. Use the lowest effective concentration to avoid oxygen toxicity. • Pharmacology Note: Diuretics (like furosemide) are not routinely used for TTN. Treatment is supportive. Memory TipsTTN = "Too Much Water, Too Fast Breathing." Think of the lungs as "wet sponges" that need time to dry out. • ABCs Always Come First: Airway, Breathing, Circulation. For a tachypneic, grunting newborn, supporting Breathing (with oxygen and monitoring) is always the top priority over feeding or specific positioning. High-Frequency NCLEX Topics NCLEX frequently tests prioritization in newborn care. A scenario describing a term or late-preterm infant with tachypnea and mild distress shortly after birth, especially following C-section, is classic for TTN. The exam will expect you to choose the supportive, monitoring-focused intervention over more invasive or condition-specific actions. Watch Out for Question Variations! • Instead of asking for the priority intervention, a question might ask: "Which finding would the nurse expect to see in an infant with TTN?" (Answer: Tachypnea resolving within 72 hours). • Or: "The nurse is preparing to feed a newborn with TTN and a respiratory rate of 68 breaths/min. What is the nurse's best action?" (Answer: Hold the feeding and notify the provider, as tachypnea increases aspiration risk). • The condition in the stem could change to Meconium Aspiration Syndrome (MAS), shifting the priority to airway suctioning and possibly prone positioning.

임상 시나리오

Nursing Clinical Practice Guide Clinical Scenario: You are the nurse in the well-baby nursery. A 2-hour-old newborn, born via elective cesarean section at 38 weeks, is brought to you. The mother reports the baby seems to be "breathing fast." Your assessment reveals a respiratory rate of 70, audible grunting, mild subcostal retractions, and nasal flaring. Pulse oximetry reads 93% on room air.

Nursing Intervention Strategy: 1. Immediate Assessment & Action (Priority): Apply a pulse oximeter probe to the right hand (pre-ductal site). Place the infant in a radiant warmer to maintain neutral thermal environment (cold stress increases oxygen consumption). Start supplemental oxygen via nasal cannula or oxygen hood to target SpO2 of 95-98%. Notify the neonatal provider. 2. Ongoing Monitoring: Monitor respiratory rate, effort (retractions, grunting, flaring), heart rate, and oxygen saturation continuously or at least every 30 minutes initially. Auscultate breath sounds for crackles (common in TTN) or decreased air entry. 3. Supportive Care: Delay oral feeding. The infant may be started on intravenous (IV) fluids (e.g., D10W) to provide calories and hydration until the respiratory rate decreases to a safe level for feeding (usually 60-65 breaths/min. Use IV therapy as ordered. • Oxygen Safety: Use an oxygen blender to deliver precise FiO2. Avoid hyperoxia (high O2 levels) in term infants to prevent retinopathy of prematurity (ROP), though ROP is a greater concern in preterm infants. • Thermoregulation: Avoid hypothermia, which worsens respiratory distress and metabolic acidosis. Nursing Procedure & Medication Flow Procedure: Administering Supplemental Oxygen to a Newborn 1. Assessment: Verify order for oxygen therapy. Assess infant's color, work of breathing, and SpO2. 2. Preparation: Select appropriate delivery device (nasal cannula, oxygen hood, or CPAP prongs). Set up oxygen source with blender and humidifier. 3. Implementation: Apply device securely but without causing pressure sores. Start at a low FiO2 (e.g., 30%) and titrate up based on SpO2 target. Place pulse oximeter probe. 4. Monitoring & Evaluation: Continuously monitor SpO2 and respiratory status. Document FiO2, device, and infant's response. Wean oxygen as tolerated. A Word from Your Senior Nurse "Newborn respiratory assessments require a keen eye. That mild grunting and flaring are your patient's way of saying, 'I'm working hard to breathe.' In TTN, your role is to be a vigilant supporter—providing just enough oxygen to keep them pink and comfortable while their amazing little bodies do the work of clearing that fluid. Never underestimate the power of close monitoring; catching a subtle drop in saturation early can prevent a full-blown crisis. Remember, for the NCLEX and at the bedside, when a newborn is breathing fast, think Airway and Breathing first. Everything else, including that first precious feed, can wait until the baby is stable."

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