The Wheezing Infant Who Is Getting Tired
A 7-month-old, 7 kg, with 3 days of cough and coryza presents with increased work of breathing. Temp 38.2 C, HR 176, RR 64, SpO2 91% on room air, BP 84/50. The infant is tachypneic with subcostal and intercostal retractions, nasal flaring, and audible wheeze; there is a faint expiratory grunt. Feeding has decreased to half of normal and there have been fewer wet diapers. A rapid respiratory viral panel is pending. The resident suggests a trial of nebulized albuterol and, if no response, discharge with follow-up. The family lives 40 minutes from the hospital and has one car that is sometimes unavailable.
1. Does this infant need admission, and how do you interpret the SpO2 and feeding history?
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Yes - this infant needs admission and continuous monitoring.
Reasoning:
- Hypoxemia: SpO2 91% on room air is below the usual target (≥92–94% for bronchiolitis pathways) and, combined with tachypnea (RR 64) and retractions, indicates significant respiratory compromise.
- Work of breathing: grunting and marked retractions suggest the infant is tiring, not just wheezing.
- Feeding/hydration: intake at half and reduced wet diapers raise concern for dehydration and inadequate reserve to handle the increased metabolic demand.
- Age: 7 months with this severity meets admission criteria in most bronchiolitis pathways.
Bronchodilator caveat: routine albuterol is not recommended for typical bronchiolitis (viral, first episode) because evidence does not support benefit. A single trial is defensible only if there is a strong atopic/asthma history or a clear response; lack of response should not be used to justify discharge. The pending viral panel does not change the disposition decision - severity does.
Judgment point: the exam tests recognizing clinical severity over a single number and resisting 'trial-and-discharge' when the child is tiring.
2. The family has limited transportation and lives 40 minutes away. How does this affect your disposition and discharge planning?
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Social determinants are part of the medical decision.
- A 40-minute drive with an unreliable vehicle and a child who is hypoxemic and tiring makes outpatient management unsafe: if the child deteriorates at home, access to care is delayed.
- Admit for monitoring, oxygen as needed, and feeding support (NG if needed).
- Engage social work/care coordination early: transportation resources, follow-up scheduling, and a written return-precaution plan (increased work of breathing, apnea, poor feeding, cyanosis).
- If the family declines admission, that is a high-risk decision requiring an informed discussion, documented capacity/refusal process, and a clear safety net - but the clinical recommendation remains admission.
Judgment point: the exam tests integrating health equity and social risk into disposition rather than treating them as afterthoughts.