A premature infant born at 28 weeks gestation is diagnosed w… | 마이메르시 MyMerci
Maternal Newborn Health
문제

A premature infant born at 28 weeks gestation is diagnosed with necrotizing enterocolitis (NEC). Which nursing intervention is the priority for this infant?

해설
The priority intervention for NEC is maintaining strict NPO status and gastric decompression to provide bowel rest and prevent intestinal perforation. Other options are inappropriate as they may exacerbate the condition.

심화 해설

Core Nursing Explanation Key Concept Analysis: This question tests the priority nursing intervention for Necrotizing Enterocolitis (NEC), a life-threatening gastrointestinal emergency primarily affecting premature infants. The core pathophysiology involves inflammation and ischemia of the intestinal lining, leading to necrosis, potential perforation, and sepsis. The fundamental principle of management is "bowel rest" to halt the inflammatory process and prevent catastrophic complications.

Answer Rationale: The correct answer is Maintain strict NPO status and gastric decompression. This is the Key Point! for initial management. NPO (Nothing by Mouth) status eliminates the work of digestion and stops the introduction of formula or milk, which can ferment and worsen gas production and distension. Gastric decompression via a nasogastric or orogastric tube connected to low intermittent suction removes air and fluid from the stomach and intestines, relieving pressure, reducing the risk of perforation, and allowing the bowel to heal. This intervention directly addresses the primary threat to the infant's life.

Distractor Analysis:
Watch out for confusion! Option ① (Administer oral feedings) is contraindicated and dangerous during the acute phase of NEC. Feeding would increase intestinal workload and bacterial proliferation, significantly worsening the condition.
• Option ② (Position prone) is incorrect. While prone positioning can aid gastric emptying in some situations, it is not the priority for NEC. More importantly, for a critically ill, potentially unstable premature infant, positioning is secondary to life-saving interventions like bowel decompression. Supine or side-lying positions are often used for easier monitoring and access.
• Option ④ (Encourage kangaroo care) is a valuable developmental and bonding intervention for stable premature infants. However, during the acute, unstable phase of NEC, the infant is critically ill, often requiring intensive monitoring, IV lines, and possibly ventilation. Kangaroo care is typically suspended until the infant is medically stable.

Related Concepts: Management of NEC is multidisciplinary. After stabilizing with bowel rest and decompression, treatment includes broad-spectrum IV antibiotics, total parenteral nutrition (TPN) for nutrition, and close monitoring for signs of deterioration (e.g., abdominal discoloration, rigid abdomen, hypotension, metabolic acidosis). Surgical intervention may be required if medical management fails or perforation occurs.
Concept SummaryDisease: Necrotizing Enterocolitis (NEC) – inflammatory bowel necrosis in preemies.
Patho: Intestinal ischemia → inflammation → necrosis → risk of perforation/sepsis.
Priority Goal: Bowel rest to prevent progression and perforation.
Key Interventions: Strict NPO, Gastric decompression (NG/OG to suction), IV antibiotics, TPN, Serial abdominal exams.
Monitoring: Abdominal girth, gastric residuals, bowel sounds, vital signs, signs of sepsis.
Side-by-Side Comparison!
ConditionPrimary PathophysiologyPriority Nursing InterventionNutritional Management
Necrotizing Enterocolitis (NEC)Intestinal ischemia & necrosisStrict NPO & Gastric DecompressionNPO initially, then TPN (IV nutrition)
Gastroesophageal Reflux (GER) in infantsImmature lower esophageal sphincterPositioning (upright after feeds), Thickened feedsContinue oral feeds with modifications
Pyloric StenosisHypertrophy of pyloric muscle → obstructionPre-op: NPO, correct fluid/electrolyte imbalanceNPO pre-op, resume feeds post-op per protocol

Anatomy, Physiology & Pharmacology PointsAnatomy/Physiology: The premature gut is immature, with poor motility, weak mucosal barrier, and underdeveloped immune defenses, making it highly susceptible to injury and bacterial invasion.
Pharmacology: IV antibiotics like Ampicillin and Gentamicin or a Third-generation cephalosporin are standard to cover common gut pathogens and prevent/treat sepsis. Understanding their dosing (based on weight), routes (IV only during acute phase), and monitoring for side effects (e.g., Gentamicin: ototoxicity, nephrotoxicity) is crucial.
Memory TipsAcronym for NEC Priority: Rest the Bowel (R = NPO, B = Bowel decompression).
Think "STOP": Stop feeds, Tube to suction, Observe closely, Provide IV support (antibiotics, TPN).
High-Frequency NCLEX Topics NEC is a classic High Yield topic in pediatric nursing. The NCLEX loves to test:
1. Identifying Risk Factors: Prematurity, low birth weight, formula feeding (vs. breast milk).
2. Recognizing Early Signs: Feeding intolerance, increased gastric residuals, abdominal distension, bloody stools.
3. Prioritizing Interventions (as in this question): Always choose bowel rest/decompression over feeding or comfort measures in the acute phase.
Watch Out for Question Variations! • Instead of asking for the priority intervention, the question might ask: "The nurse is caring for an infant with NEC. Which finding requires immediate notification of the provider?" Correct answer: Signs of perforation (e.g., board-like abdomen, sudden deterioration in vital signs).
• Or: "An infant is being treated for NEC. Which parent statement indicates a need for further teaching?" Correct answer: "I will hold my baby skin-to-skin as soon as we get to the NICU." (Kangaroo care is inappropriate during the acute phase).

임상 시나리오

Nursing Clinical Practice Guide Clinical Scenario: You are a nurse in the Neonatal Intensive Care Unit (NICU). Baby Boy Lee, born at 28 weeks gestation (now 10 days old), has developed abdominal distension, bilious (green) gastric aspirates, and has guaiac-positive stools. The neonatologist diagnoses suspected NEC. The infant is placed under a radiant warmer, has an umbilical arterial line (UAC) for blood pressure monitoring and blood draws, and a peripheral IV.

Nursing Intervention Strategy:
1. Assessment: Perform abdominal assessments every 4 hours (or more frequently): Measure abdominal girth at a marked spot, auscultate for bowel sounds (may be absent or high-pitched), palpate gently for tenderness or rigidity. Monitor vital signs closely for tachycardia, hypotension, temperature instability (signs of sepsis). Assess gastric aspirate color, consistency, and volume.
2. Implementation of Priority Care:
Maintain NPO: Place a sign above the warmer. Document "NPO – NEC Precautions." Educate parents on the critical reason for no feeds.
Gastric Decompression: Insert a double-lumen Replogle tube (or standard OG/NG tube) to low intermittent suction. Irrigate with small amounts of saline per protocol to maintain patency. Measure and record output.
3. Supportive Care: Administer IV antibiotics on time. Manage IV fluids and TPN as ordered. Provide meticulous skin care, especially around the stoma if surgery was performed. Offer non-nutritive sucking with a pacifier for comfort and oral development.
4. Family Education & Support: Explain all procedures and equipment. Use simple terms to describe NEC. Acknowledge parental stress and encourage them to talk to and gently touch their baby when appropriate. Discuss the plan for slowly reintroducing feeds (often starting with trophic feeds of breast milk) once the infant recovers.
Nursing Procedure & Medication Flow Gastric Decompression Setup & Monitoring:
1. Verify order for "NG/OG to low intermittent suction."
2. Measure tube for correct insertion length (NEX method: Nose-Ear-Xiphoid).
3. Secure tube well to prevent dislodgement and nasal trauma.
4. Connect to suction set at 80-100 mmHg (low intermittent).
5. Monitor: Output q4h (report if > significant amount or bloody). Check tube placement q4h and before meds/irrigation (aspirate for gastric contents, check pH if possible).

Medication Administration (IV Antibiotics):
Key Point! Antibiotics for NEC are always IV in the acute phase.
• Calculate dose accurately based on current weight (preemies change weight daily).
• Administer via a dedicated lumen if using a central line, or a well-functioning peripheral IV.
• For Gentamicin: Monitor peak/trough levels as ordered. Assess for signs of ototoxicity (not easily observable in preemies) and nephrotoxicity (monitor urine output, BUN/Creatinine).
A Word from Your Senior Nurse "NEC is one of the most frightening diagnoses in the NICU. As a nurse, your vigilant assessment is the first line of defense. A subtle increase in abdominal girth or a change in the color of gastric aspirate can be the earliest clue. Remember, in acute NEC, the gut is 'sick' and needs complete rest—think of it as putting a cast on a broken bone. Your role in maintaining that rest through strict NPO and effective decompression is non-negotiable. It's tough to see a baby not being fed, and parents will have questions. Your confident explanation of the 'why' behind the intervention not only provides excellent care but also builds crucial trust with the family during a terrifying time. This deep understanding is what separates a task-completer from a true guardian of your tiny patients."

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