In this section
Acute asthma Bronchiolitis Croup Pneumonia Minimising distress in healthcare settings Normal ranges for physiological variables
Mild
Moderate
Severe
Life-threatening
Behaviour
Normal Able to vocalise normally
Intermittent irritability Reduced activity Some limitation of ability to vocalise
Increasing irritability and/or lethargy Marked limitation of ability to vocalise, single words
Drowsy or unconscious Unable to vocalise
Colour
Normal
Pallor
Pallor or cyanosis
Cyanosis
Respiratory rate (At rest and not crying)
Normal or mildly increased
Increased
Markedly increased or may have bradypnoea or apnoea
Increased work of breathing*
None or minimal
Marked
Severe accessory muscle use or poor respiratory effort
Oxygenation (Oxygenation is only of limited utility in judging severity in many paediatric respiratory conditions. Do not just focus on the SaO2 monitor. Look at the other signs.)
SpO2 less than 90% (in room air)
Any O2 requirement in croup is classed as severe
Heart rate
Normal or slightly increased
Mildly increased
Significantly increased or bradycardia
Arrhythmia or bradycardia
Blood pressure (Do not measure in croup)
Hypotension
*Signs of increased work of breathing
Accessory muscle anatomy
Management of individual conditions can be found under specific guidelines
Any child with severe respiratory distress should be discussed with a senior clinician
Management is beyond the capability of the local health care facility
For emergency advice and paediatric or neonatal ICU transfers, see Retrieval Services
Example videos of increased work of breathing
Last updated September 2024