Nursing care
Asthma in Children 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
Asthma in children nursing care centres on rapid assessment of work of breathing, correct inhaler technique with a spacer, and escalation when a child stops wheezing. Without a spacer, most of a metered-dose inhaler's dose lands in the mouth and throat rather than the lungs, so technique is treated as a clinical priority, not a teaching afterthought.
The pathophysiology in one pass
Paediatric asthma airways narrow through three overlapping mechanisms: bronchospasm, mucosal oedema, and mucus plugging. Children have proportionally smaller airway diameters than adults, so the same degree of swelling causes a much greater rise in airway resistance. A small reduction in radius produces a large increase in resistance, which is why a child can deteriorate faster than an adult with a comparable trigger.
Triggers in this age group are typically viral upper respiratory infections, allergens such as dust mite or pet dander, cold air, and exercise. Airway inflammation persists between flares even when the child looks well, which is the rationale for daily controller therapy rather than reliever use alone. Nurses assessing a child with asthma are watching a dynamic process, not a fixed diagnosis, and reassessment after every intervention matters more than the initial number.
Assessment findings that matter
Work of breathing is the single most useful bedside finding: nasal flaring, tracheal tug, subcostal and intercostal retractions, and the child's ability to speak in full sentences versus single words. A silent chest, where wheeze has disappeared because too little air is moving to generate the sound, is a deteriorating sign, not an improving one, and should never be read as relief.
Respiratory rate and oxygen saturation are trended rather than taken once. A child who is tiring will often show a falling respiratory rate alongside falling saturation, which can be mistaken for improvement if the retractions and mental status are not checked at the same time. Positioning — a child who will only sit forward, tripod, or refuses to lie flat — is a reliable marker of distress that predates a drop in saturation. Skin colour, level of alertness, and the ability to feed or talk are age-appropriate substitutes for symptoms a young child cannot report verbally.
What the exam asks about this
NCLEX-style items on paediatric asthma typically test priority-setting: which finding to report first, and which action precedes which. A common pattern presents several findings — wheeze, mild retractions, a quiet chest, anxious behaviour — and asks which is most concerning; the quiet or silent chest is usually the correct answer because it signals inadequate air movement rather than resolving obstruction.
Expect questions on inhaler and spacer technique, including how to sequence a metered-dose inhaler with a spacer, and questions on distinguishing a short-acting beta-agonist from a controller medication by asking what the child would use for sudden symptoms versus daily prevention. Delegation items may ask whether a nursing assistant can administer a nebuliser treatment; medication administration in an acute respiratory event stays with the licensed nurse.
Nursing interventions in priority order
Position the child upright or in whatever position they have chosen for comfort, and apply supplemental oxygen to maintain the ordered saturation target before anything else. Administer the prescribed short-acting bronchodilator promptly, since delay in an acute flare allows airway narrowing to progress and makes subsequent doses less effective.
A spacer is not optional for a child — without one most of the dose lands in the mouth rather than reaching the lower airways, so metered-dose inhalers are always given through a spacer, with a mask attachment for children too young to form a seal around a mouthpiece. Reassess work of breathing, respiratory rate, and saturation after each treatment rather than waiting for the next scheduled round. Keep the child and caregiver calm; a frightened child breathes faster and less effectively, which worsens the mechanics of an already narrowed airway.
Medications and monitoring
Short-acting beta-agonists such as albuterol are the first-line reliever for acute symptoms, delivered by nebuliser or metered-dose inhaler with spacer depending on the child's ability to coordinate breaths and the severity of distress. Inhaled corticosteroids are the mainstay controller for children with persistent asthma, taken daily regardless of symptoms, and caregivers need to understand that a controller will not relieve an acute attack.
Systemic corticosteroids, oral or intravenous, are added in moderate to severe exacerbations to reduce airway inflammation over the following days; they do not act immediately, so they are given alongside, not instead of, a bronchodilator. Monitor heart rate after beta-agonist doses, since tachycardia and tremor are expected side effects, and monitor potassium if repeated doses are given, as beta-agonists can shift potassium intracellularly.
When to escalate
Escalate immediately for a silent chest, rising respiratory effort despite treatment, oxygen saturation that fails to improve or continues to fall, altered level of consciousness, or a child who becomes too breathless to speak or feed. These are signs of impending respiratory failure and warrant urgent physician or rapid response notification rather than a further round of scheduled bronchodilator alone.
Also escalate if a child who was previously responding stops improving after two to three nebuliser treatments, or if accessory muscle use and retractions worsen rather than ease. In these situations continuous monitoring, arterial blood gas assessment, and preparation for higher-level respiratory support are appropriate next steps, and the family should be kept informed as the plan changes.
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
Why does a child with asthma need a spacer with their inhaler?
A young child cannot coordinate the slow, deep breath needed to draw medication from a metered-dose inhaler directly into the lungs. Without a spacer, most of the dose deposits in the mouth and throat instead of reaching the airways, so the treatment is far less effective even though the child received the correct number of puffs.
What does a silent chest mean in a child with asthma?
A silent or quiet chest means airflow has dropped so low that wheeze can no longer be generated. It is a sign of severe obstruction and impending respiratory failure, not improvement, and should trigger immediate escalation.
How is a reliever inhaler different from a controller inhaler in children?
A reliever, such as albuterol, is a short-acting bronchodilator used for sudden symptoms or before exercise. A controller, typically an inhaled corticosteroid, is taken daily to reduce ongoing airway inflammation and does not treat an acute attack.
What vital sign changes suggest a child with asthma is tiring?
A falling respiratory rate combined with worsening retractions, falling oxygen saturation, or reduced alertness suggests the child is tiring rather than improving. A slowing respiratory rate should never be read as reassuring without checking work of breathing and mental status alongside it.
Can unlicensed staff give nebuliser treatments to a child in an acute asthma episode?
No. Medication administration during an acute respiratory event, including nebuliser treatments, stays with the licensed nurse because ongoing clinical assessment and rapid escalation may be needed between and during doses.