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Asthma Attack

Use this guideline only if a physician has previously diagnosed you as having asthma, asthmatic bronchitis, or reactive airway disease.
Asthma symptoms include recurring episodes of wheezing, cough, chest tightness, and difficulty breathing.
Wheezing is a high-pitched or whistling sound heard when you breathe out.

General Information

Asthma Triggers: Different things can cause an asthma attack. These things are called asthma triggers.
- Allergens (pollen, house dust, mold, animal dander)
- Sudden changes in the weather (generally cold weather)
- Irritants (cigarette smoke, dirt, pollution)
- Infections (cold or flu)
- Exercise
Peak Flow Meters: Peak flow meters measure how fast an adult can move air out of the lungs. Every adult asthmatic should have a peak flow meter. These measurements are very useful for grading the severity of an asthma attack.
- Mild attack: PEFR 80-100% of baseline (personal best) (green zone)
- Moderate attack: PEFR 50-80% (yellow zone)
- Severe attack: PEFR less than 50% (red zone)
- In general, medications should be increased when the PEFR is less than 80% of baseline and an adult should be seen immediately in an office or emergency department if the PEFR is less than 50%.