An asthma attack can become serious very quickly. Prompt recognition and calm action can significantly reduce risk.
This guide explains how asthma attacks are approached in UK first aid, what warning signs to look for, and when to call 999. It applies to homes, schools, workplaces and public settings.
The information below is general first aid guidance and does not replace medical advice or an individual’s asthma action plan.
An asthma attack happens when the airways narrow and become inflamed, making breathing difficult. It can develop suddenly or build gradually.
Common triggers include:
Symptoms may include:
Severe symptoms can include exhaustion, confusion or a bluish tinge around the lips.
Most people with asthma will carry a prescribed reliever inhaler.
You should call 999 immediately if:
If the person becomes unconscious, see First Aid for an Unconscious Person.
Asthma is common in both children and adults. Schools and workplaces should ensure staff understand basic asthma first aid and know how to contact emergency services quickly.
Planning guidance is explained in Workplace First Aid Risk Assessment (UK).
| Severity | Typical features | Action required |
|---|---|---|
| Mild | Shortness of breath but able to speak | Use reliever inhaler and monitor |
| Moderate | Breathless, difficulty speaking in full sentences | Use inhaler and seek medical advice if no improvement |
| Severe | Unable to speak, extreme breathlessness, exhaustion | Call 999 immediately |
Asthma can affect people of all ages and may escalate quickly.
Where asthma attacks occur in workplaces or organised environments, incidents should be recorded according to internal procedures.
See Accident Reporting & First Aid Records (UK).
Remaining calm, helping the person sit upright and ensuring access to their reliever medication are key steps. Early escalation to emergency services can prevent serious complications.
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