PE25.6 | Lower Respiratory Infection — Summary & Reflection

KEY TAKEAWAYS

Lower respiratory infections in children span four distinct entities: bronchiolitis (RSV, infants <2yr, supportive management), wheeze-associated LRTI (viral bronchospasm, bronchodilator trial), pneumonia (S. pneumoniae commonest bacterial cause, classified by IMNCI), and empyema (bacterial, requires drainage). The WHO IMNCI fast-breathing thresholds are age-specific and must be memorised: ≥60/min for under 2 months, ≥50/min for 2–12 months, and ≥40/min for 1–5 years. Chest indrawing indicates severe pneumonia and mandates hospital admission; danger signs require urgent referral. Non-severe pneumonia is treated with oral amoxicillin 40 mg/kg/day in 3 doses for 5 days at home; severe pneumonia requires IV ampicillin plus gentamicin in hospital. Bronchiolitis is managed supportively with oxygen (SpO2 <92%) and hydration — bronchodilators are not routinely recommended. Prevention rests on PCV and Hib vaccination within India's Universal Immunization Programme.

REFLECT

Return to the opening scenario: the 9-month-old girl with a respiratory rate of 55 per minute and visible lower chest-wall indrawing. You now know that 55/min exceeds the IMNCI threshold for her age (≥50/min), and that chest indrawing classifies her as severe pneumonia. She needed admission, oxygen, IV ampicillin and gentamicin — not a discharge. Reflect on the system of care: in India, a large proportion of these children first encounter a community health worker (ASHA) or an MBBS doctor at a primary health centre, not a paediatric specialist. The IMNCI algorithm was designed precisely for this reality. How does knowing that the threshold is 50/min for a 9-month-old — not 60, not 40, but 50 — change how you will approach your next patient in a primary health centre? How will you communicate these thresholds to the family, so they understand why their child, who seems 'only a little unwell,' needs to be admitted?