A nurse is assessing a 32-week gestational age preterm newbo… | 마이메르시 MyMerci
Maternal Newborn Health
문제

A nurse is assessing a 32-week gestational age preterm newborn in the NICU. Which assessment finding would be the MOST concerning and require immediate intervention?

해설
Apneic episodes >20 seconds with bradycardia and cyanosis are life-threatening emergencies requiring immediate intervention. Other findings are less urgent or within normal limits for preterm infants.

심화 해설

Core Nursing Explanation Key Concept Analysis: This question assesses the nurse's ability to prioritize life-threatening conditions in a Preterm newborn. The core theme is recognizing Apnea of Prematurity (AOP) and its associated dangers. In preterm infants, the respiratory control center in the brain is immature, leading to irregular breathing patterns. True apnea is defined as a cessation of breathing for >20 seconds, or a shorter pause accompanied by Bradycardia (heart rate 20 sec threshold) and is accompanied by both bradycardia and cyanosis. This triad (apnea, bradycardia, cyanosis) signifies a profound lack of oxygen delivery to vital organs, most critically the brain. Immediate nursing intervention—such as tactile stimulation (flicking the feet, rubbing the back), ensuring a patent airway, and potentially administering positive pressure ventilation—is required to re-establish breathing and oxygenation. This is the clear priority over the other options.

Distractor Analysis:
  • Option ① (Respiratory rate 65 with mild retractions): A respiratory rate of 65 breaths/min is within the expected range (40-60) or slightly elevated for a preterm infant. Mild intercostal retractions can be common due to Compliant chest wall and underdeveloped lungs. While it requires monitoring, it is not an immediate life threat like apnea with bradycardia.
  • Option ③ (Blood glucose 45 mg/dL): For a Preterm infant, a blood glucose level of 45 mg/dL (2.5 mmol/L) is generally considered acceptable, especially 2 hours after a feeding. The threshold for intervention (hypoglycemia) is typically 20 sec, or shorter pause with bradycardia/cyanosis.Life-threatening due to immature respiratory center. Requires immediate intervention. Bradycardia in PretermHeart rate

임상 시나리오

Nursing Clinical Practice Guide Clinical Scenario: You are the NICU nurse for Baby Boy Lee, born at 32 weeks gestation, now 2 days old. He is in a radiant warmer. While documenting, you glance at his monitor and see the heart rate alarm sounding at 88 bpm. You look at him and note he is not breathing and has a bluish tint around his mouth (circumoral cyanosis).

Nursing Intervention Strategy:
  1. Immediate Assessment & Action (Seconds 0-15):
    • Check responsiveness: Gently flick the soles of his feet or rub his back firmly. Do not shake the infant.
    • Simultaneously, ensure his head is in a neutral, sniffing position to open the airway. Suction mouth/nose if obvious secretions are present.
  2. If No Response (Seconds 15-30):
    • Call for help. Begin positive pressure ventilation (PPV) with a bag-valve-mask (BVM) connected to oxygen. Use the correct mask size to cover nose and mouth.
    • Ventilate at a rate of 40-60 breaths per minute, observing for chest rise.
  3. Ongoing Care & Monitoring:
    • Once breathing and heart rate recover, provide supportive care: reposition, ensure thermoregulation.
    • Document the event meticulously: duration of apnea, lowest heart rate, nursing actions taken, and infant's response.
    • Notify the neonatal provider. The infant may need increased monitoring, a methylxanthine medication (e.g., caffeine), or CPAP (Continuous Positive Airway Pressure).
Patient Safety and Precautions:
  • Avoid Overstimulation: Use gentle, tactile stimulation. Vigorous shaking can cause intracranial hemorrhage.
  • Airway First: Always position the airway before starting PPV. An obstructed airway makes ventilation ineffective.
  • Monitor for Recurrence: Apneic episodes often cluster. Close monitoring is essential after an event.
Nursing Procedure & Medication Flow Procedure: Responding to Apnea & Bradycardia ("A's & B's") 1. Assess: Verify apnea (no chest movement) and bradycardia (HR

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