Nursing care
Bronchiolitis nursing care: what to assess and what to do first
Written and reviewed by Dana Whitfield, RN, MSN · 5 min read · Updated September 2026
Short answer
Bronchiolitis nursing care is supportive: suction the nose, keep the child hydrated, and monitor breathing — antibiotics do not treat it. Most cases occur under age two, driven by RSV, and present with a runny nose followed by wheeze and increased work of breathing. Nurses focus on airway clearance, hydration and watching for signs the child is tiring.
Recognising it at the bedside
The child is under two, often between three and six months, with a runny nose for a day or two before the cough starts. Then comes the wheeze, a tight expiratory sound you hear even without a stethoscope in a bad case, alongside tachypnoea and nasal flaring. Feeding drops off first, before the respiratory distress becomes obvious, because a blocked nose and fast breathing make sucking and swallowing exhausting for an infant who breathes almost entirely through the nose.
Look at the whole child, not just the chest. Colour, alertness, and how hard the accessory muscles are working tell you more than the oxygen saturation alone in the first few minutes. A baby who is quiet, feeding poorly and just lying still is often sicker than one who is crying loudly — a crying infant is moving air.
Why the classic presentation misleads
Wheeze pulls nurses toward asthma thinking, and toward reaching for a bronchodilator or a course of oral steroids. Neither has consistent evidence of benefit in bronchiolitis, and current guidance in most units does not recommend salbutamol as routine therapy — a trial dose may be given in some settings, but it is not the default response to wheeze in this age group the way it would be for an older child with known asthma.
The runny nose also invites a bacterial narrative, and a worried parent will often ask for antibiotics. Bronchiolitis is a viral lower respiratory tract infection, most commonly RSV, and antibiotics do nothing to the virus. Reserve that conversation for a genuine secondary bacterial complication, not the primary illness, and be ready to explain why treatment is supportive rather than curative.
Priority nursing actions
Suction first. Nasal secretions in an infant who cannot breathe through their mouth effectively are often the single biggest driver of distress and feeding difficulty, so saline drops followed by gentle bulb or wall suction before feeds and before assessment can transform how the child looks within minutes.
Hydration comes next. Offer smaller, more frequent feeds if the infant can manage oral intake, and escalate to nasogastric or intravenous fluids if work of breathing makes oral feeding unsafe or intake has clearly dropped. Position the infant with the head slightly elevated, monitor respiratory rate, oxygen saturation and work of breathing continuously in the acute phase, and apply supplemental oxygen to the target saturation set by unit protocol rather than to an arbitrary number.
Labs and diagnostics to expect
Diagnosis is clinical, made from history and examination, so blood tests and chest x-rays are not routinely needed for a typical case and can be actively unhelpful — an x-ray in bronchiolitis often shows hyperinflation or patchy changes that mimic pneumonia and invite unnecessary antibiotics.
A nasopharyngeal swab for RSV or a broader viral panel is common on admission, mainly for cohorting and infection control rather than to change management, since treatment stays supportive regardless of the specific virus identified. Pulse oximetry is the diagnostic tool nurses actually use continuously; blood gas testing is reserved for infants in significant respiratory distress where ventilatory support is being considered.
Complications and their early signs
Apnoea is the complication that catches nurses out, particularly in infants born prematurely or under two months old, because it can occur with a chest that otherwise sounds only mildly wheezy. Continuous monitoring in this group is there for exactly this reason, and any witnessed apnoeic episode changes the management plan immediately.
Watch for the child who is tiring: slowing respiratory rate after a period of rapid breathing is not improvement, it is exhaustion, and paired with dropping saturations or a rising heart rate it signals impending respiratory failure. Dehydration from poor feeding and insensible losses through fast breathing is the other complication to track — reduced wet nappies and dry mucous membranes are your early clues before the numbers move.
Teaching that changes outcomes
Parents need to hear plainly that there is no antibiotic or inhaler that cures this, and that the illness runs its course over roughly a week to ten days with cough sometimes lingering for weeks after. Teach saline nasal drops and bulb suction technique before feeds at home, since this is the intervention families can actually control and repeat.
Give clear return criteria: breathing that looks harder, not easier; a baby who stops feeding well or has fewer wet nappies; grunting, blue lips, or pauses in breathing. Framing the return-to-hospital signs around feeding and breathing effort, rather than a temperature number, matches what actually predicts deterioration in this illness.
The next step on this is the same as on everything else here: answer questions and read the rationales. Our pediatrics practice questions are the closest set to what this page covers.
Common questions
Do all infants with bronchiolitis need admission?
No. Most are managed at home with supportive care once clinicians have ruled out significant distress, poor feeding, or apnoea risk factors such as young age or prematurity. Admission criteria vary by unit but generally centre on hypoxia, feeding intolerance, and increased work of breathing rather than the presence of wheeze alone.
Is RSV the only cause of bronchiolitis?
RSV is the most common cause, but rhinovirus, parainfluenza, adenovirus and human metapneumovirus can all produce the same clinical picture. Management does not change based on which virus is identified, which is why routine viral testing is used more for infection control than for treatment decisions.
Why isn't a bronchodilator given routinely?
Bronchiolitis involves airway inflammation and mucus plugging rather than the reversible bronchospasm that bronchodilators target in asthma, so trials have not shown consistent benefit. Some clinicians still trial a single dose and reassess, but it is not standard first-line therapy the way it is in older children with wheeze from asthma.
How long is a child with bronchiolitis contagious?
RSV shedding typically lasts around a week from symptom onset in an otherwise healthy child, though it can persist longer in infants or those who are immunocompromised. Standard and contact precautions, along with hand hygiene, are the mainstay of preventing spread on a ward.
What is the single biggest red flag for a nurse to escalate on?
A slowing respiratory rate in a previously tachypnoeic infant, especially alongside dropping saturations or reduced responsiveness, signals exhaustion and impending respiratory failure rather than improvement. Any apnoeic episode, however brief, should be escalated immediately.