Titrating Oxygen and Positioning in a Child With Asthma Exacerbation
A 9-year-old boy weighing 30 kg is brought to the emergency department with a 2-day history of cough and wheeze that worsened overnight. He has a known history of asthma, uses an albuterol inhaler at home, and has had two prior emergency visits in the past year but no intensive care admissions. On arrival: RR 34, HR 128, SpO2 91% on room air, temp 37.6 C, speaks in short phrases, has intercostal retractions, nasal flaring, and audible wheeze with a prolonged expiratory phase. Peak flow is 45% of his personal best. He is anxious and clings to his mother. Orders include albuterol 2.5 mg by nebulizer every 20 minutes for three doses, ipratropium 0.5 mg with the first two doses, oral prednisolone 30 mg, and oxygen to keep SpO2 above 92%.
1. Assess the severity of this exacerbation and justify the initial nursing actions in priority order.
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This is a moderate-to-severe exacerbation, not a mild one. Supporting features: SpO2 of 91% on room air, peak flow at 45% of personal best, retractions, nasal flaring, accessory muscle use, a prolonged expiratory phase, tachycardia, tachypnea, and short-phrase speech. The nurse should act in this order: position the child upright and allow him to stay with his mother to reduce distress and oxygen demand; apply oxygen by nasal cannula or simple mask titrated to keep SpO2 above 92%, reassessing continuously because a falling saturation or a silent chest signals deterioration; administer the first albuterol and ipratropium nebulizer promptly while the provider is notified; give prednisolone as ordered, since steroids reduce airway inflammation but take hours to work, so they are not a rescue measure; and reassess after each nebulizer treatment using work of breathing, air entry, wheeze, heart rate, and oxygen saturation. The nurse should avoid forcing a mask on an agitated child and instead coach the mother to hold it near the face, because distress worsens bronchospasm. Continuous reassessment, not a single treatment, drives the decision to escalate.
2. After the third nebulizer, the child is tired, the wheeze is quieter, air entry is diminished, and SpO2 is 89% on 4 L. Interpret these findings and state the nurse's next actions.
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Quieter wheeze with reduced air entry, increasing fatigue, and falling saturation is a warning sign of worsening obstruction, not improvement. A silent or quieter chest in a tiring child can mean airflow is so limited that wheeze is no longer generated, and fatigue raises the risk of respiratory failure. The nurse should immediately increase oxygen to maintain saturation, stay at the bedside, and call the provider or rapid response team without delay. Do not leave the child alone; continuous pulse oximetry and cardiorespiratory monitoring should be applied if not already in place. Prepare for escalation: additional continuous albuterol, consideration of intravenous magnesium or other therapies per provider order, and readiness for noninvasive ventilation or intubation. The nurse should also reassess mental status, respiratory rate trend, and ability to speak, and document the change in air entry and saturation. The key judgment is that the absence of wheeze in a deteriorating child is a red flag, and the nurse should escalate rather than wait for the next scheduled treatment.
3. The mother asks why her son needs steroids if the nebulizers "fix" the breathing, and whether he can go home after the treatments. Formulate the nurse's teaching and the discharge criteria the nurse should advocate for.
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The nurse should explain that albuterol opens the airways quickly but does not treat the underlying inflammation, while prednisolone reduces swelling over hours and lowers the chance of relapse and readmission; this is why both are used together. The nurse should also set realistic expectations: a single emergency visit does not guarantee discharge, and the decision depends on response. Discharge criteria the nurse should advocate for include sustained SpO2 above 92% on room air, minimal retractions and good air entry, peak flow returning toward the child's personal best (commonly at least 70%), ability to walk and speak comfortably, a stable heart rate and respiratory rate, and no need for rescue albuterol more often than every 4 hours. Before leaving, the nurse should verify inhaler technique with a spacer, review the written asthma action plan, confirm the family knows when to call, and ensure a follow-up appointment and refill of controller medication. The nurse should also ask about triggers at home and school so the plan is practical.