It is defined by a paroxysmal attack of short duration.
Symptoms, dyspnoea, chest tightness, wheezing but also cough, readily nocturnal, resolve spontaneously or under the effect of treatment. The occurrence of episodes of coughing at laughter, excitement, effort, is one of the symptoms of asthma.
It is defined by the persistence of respiratory symptoms beyond 24 hours, regardless of the mode of gradual or sudden onset. Exacerbation must be differentiated from instability. The exacerbation is a symptomatic destabilization of sufficient amplitude to justify an appropriate therapeutic intervention.
Pediatric Respiratory Assessment Measure (PRAM) score is used to grade the severity of an asthma attack in children (1-17 years). The scores obtained have the following meaning:
- Score from 0 to 3: mild crisis.
- Score of 4 to 7: moderate crisis.
- Score of 8 to 12: severe crisis.