Asthma is a long-term condition that affects the airways, the small breathing tubes that carry air in and out of the lungs. During an asthma flare-up, these airways can become swollen, tight, and filled with extra mucus, making it harder to breathe. Asthma matters because symptoms can interfere with exercise, sleep, school, and daily activities.
With the right plan, most people with asthma can stay active and reduce serious flare-ups.
Asthma is often triggered by things in the environment, such as pollen, dust mites, smoke, cold air, strong smells, respiratory infections, or exercise. Management usually includes avoiding known triggers, using medicines as prescribed, and following an asthma action plan made with a healthcare professional. Quick-relief inhalers help relax tightened airway muscles during symptoms, while controller medicines help reduce airway inflammation over time.
Students should learn warning signs, carry needed medicine if directed, and ask for adult or medical help when breathing becomes difficult.
Key Facts
- Asthma narrows airways through inflammation, muscle tightening, and extra mucus.
- Common symptoms include wheezing, coughing, chest tightness, and shortness of breath.
- Common triggers include pollen, dust mites, mold, pet dander, smoke, cold air, exercise, and respiratory infections.
- A quick-relief inhaler is used for fast symptom relief when prescribed by a healthcare professional.
- Controller medicine is taken regularly to reduce airway inflammation and prevent flare-ups.
- Peak flow percent = measured peak flow ÷ personal best peak flow × 100.
Vocabulary
- Asthma
- Asthma is a long-term condition in which the airways can become inflamed and narrowed, making breathing difficult.
- Airway
- An airway is a tube in the respiratory system that carries air to and from the lungs.
- Trigger
- A trigger is something that can start or worsen asthma symptoms in a person with asthma.
- Inhaler
- An inhaler is a device that delivers medicine into the lungs through the mouth.
- Asthma Action Plan
- An asthma action plan is a written guide from a healthcare professional that explains daily care, warning signs, and what to do during symptoms.
Common Mistakes to Avoid
- Ignoring mild symptoms is a mistake because coughing, wheezing, or chest tightness can be early warning signs of a flare-up.
- Using only a quick-relief inhaler and skipping prescribed controller medicine is wrong because controller medicine helps prevent inflammation before symptoms become serious.
- Assuming all asthma triggers are the same for everyone is wrong because each person may react to different things such as pollen, smoke, cold air, or exercise.
- Waiting too long to get help during severe breathing trouble is dangerous because asthma can worsen quickly and may require urgent medical care.
Practice Questions
- 1 A student has a personal best peak flow of 400 L/min. Today their peak flow is 320 L/min. What percent of their personal best is today’s reading?
- 2 A classroom has 30 students, and 6 students report that pollen can trigger their asthma symptoms. What percent of the class reports pollen as a trigger?
- 3 Explain why avoiding cigarette smoke and following an asthma action plan can both help reduce asthma flare-ups.