Symptoms
DEFINITION
- 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
Asthma Triggers: Different things can cause an asthma attack. These are called asthma triggers.
- Allergens (pollen, house dust, mold, animals)
- Irritants (cigarette smoke, dirt, pollution)
- Exercise
- Respiratory Infections (cold or flu)
- Sudden changes in the weather (generally cold weather)
Asthma Medications - There are two main types of asthma medications, long-term and quick-relief:
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A Quick-Relief (rescue, reliever) medicine helps stop an asthma attack that has already started. It can keep the attack from getting serious. It works fast to stop the tightness and opens the airways in the lungs during an asthma attack. An adult should take it at the first sign of a wheeze, cough, or drop in peak flow measurement. Sometimes doctors will tell an adult to take it every day for a week or two after an asthma attack, but quick-relief medicines are not meant to be used to stop attacks every day for weeks and weeks. Examples of quick-relief medicines include inhaled or nebulized beta-agonists (e.g., Proventil, Alupent, Albuterol, Ventolin, Salbutamol).
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A Long-Term-Control (preventative, controller) medicine keeps asthma attacks from starting. It works slowly over many weeks to stop the swelling in the airways. An adult must take it every day even when they feel fine and can breathe well. Examples of preventative medicines include inhaled steroids (e.g., Aerobid, Azmacort, Beclovent, Flovent, Pulmicort, Vanceril) and cromolyn.
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. The normal peak expiratory flow rate (PEFR) for a healthy adult female is 400-500 and the normal value is 500-650 for a healthy adult male. Peak flow rates decrease during an asthma attack. In general, medications should be increased when the PEFR is less than 80% of baseline and an adult should be seen immediately in the emergency department if the PEFR is less than 50%.
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Mild attack: PEFR 80-100% of baseline (personal best / green zone)
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Moderate attack: PEFR 50-80% (yellow zone)
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Severe attack: PEFR less than 50% (red zone)
Photo Example
How to Use a Dry Powder Inhaler
Dry powder inhalers require a different inhaling technique than regular metered dose inhalers (MDI). To use a dry powder inhaler, it is important to close your mouth tightly around the mouthpiece of the inhaler and to inhale rapidly. Here are the steps:
- STEP 1 - Remove the cap and follow manufacturer's instructions to load a dose of medicine.
- STEP 2 - Breathe out completely.
- STEP 3 - Put the mouthpiece of the inhaler in the mouth.
- STEP 4 - Breathe in quickly and deeply.
- STEP 5 - Hold your breath for ten seconds to allow the medicine to reach deeply into your lungs.
- If your doctor has prescribed two or more inhalations, wait 1 minute and then repeat steps 2-5.
How to Use a MDI
A metered dose inhaler (MDI) is a device used to deliver asthma medication directly to the lungs. In order to ensure effective administration of the medicine, the following steps should be performed.
- STEP 1 - Remove the cap and shake the inhaler.
- STEP 2 - Hold the inhaler about 1-2 inches in front of the mouth. Breathe out - completely.
- STEP 3 - Press down on the inhaler to release the medicine as you start to breathe in slowly.
- STEP 4 - Breathe in slowly for three to five seconds.
- STEP 5 - Hold your breath for ten seconds to allow the medicine to reach deeply into your lungs.
- If your doctor has prescribed two puffs, wait 1 minute and then repeat steps 2-5.
How to Use a MDI with Spacer
A spacer (or holding chamber) can be useful for all patients. A spacer makes it easier to correctly inhale the asthma medication out of the metered dose inhaler (MDI). A spacer is especially useful in younger children and older adults.
- STEP 1 - Shake the inhaler and then attach it to the spacer (holding chamber).
- STEP 2 - Breathe out completely.
- STEP 3 - Place the mouthpiece of the spacer in your mouth.
- STEP 4 - Press down on the inhaler. This will put one puff of the medicine in the holding chamber or spacer.
- STEP 5 - Breathe in slowly for 5 seconds.
- STEP 6 - Hold your breath for 10 seconds and then exhale.
- If your doctor has prescribed two or more puffs, wait 1 minute between each puff and then repeat steps 2-6.
How to Use a Peak Flow Meter
Every adult asthmatic should have a peak flow meter. A peak flow meter is a device that measures how well air moves out of your lungs. The number that is obtained is called the peak expiratory flow rate (PEFR). The "personal best" value is the highest PEFR number that a person obtains when they are feeling well.
Here is how to use a peak flow meter:
- STEP 1 - Move the indicator to the bottom of the numbered scale. Stand up.
- STEP 2 - Take a deep breath, filling your lungs completely.
- STEP 3 - Place the mouthpiece in your mouth and close your lips around it. Do not put your tongue inside the hole.
- STEP 4 - Blow out as hard and fast as you can.
- STEP 5 - Repeat the process two more times.
- STEP 6 - Write down the highest of the three numbers.
Using a Peak Flow Meter to Determine the Severity of an Asthma Attack:
- GREEN Zone - MILD Attack: PEFR 80-100% of personal best
- YELLOW Zone - MODERATE Attack: PEFR 50-80%
- RED Zone - SEVERE Attack: PEFR less than 50%