Purpose of MDIs: Metered Dose Inhalers deliver medication directly to the lungs, crucial for managing asthma symptoms and preventing exacerbations.
Importance of Spacer: A spacer device is highly recommended for children as it helps deliver more medication to the lungs and reduces medication deposition in the mouth and throat.
Regular Use: Controller medications in MDIs must be used regularly as prescribed, even when the child feels well, to maintain asthma control.
Rescue Inhalers: Rescue inhalers (e.g., albuterol) are used for quick relief of sudden asthma symptoms like wheezing or shortness of breath.
🤒 Associated Symptoms
Wheezing: A high-pitched whistling sound, especially when exhaling, indicating narrowed airways.
Shortness of Breath: Difficulty breathing, rapid breathing, or gasping for air.
Persistent Cough: A cough that is dry, hacking, or worsens at night or with activity.
Chest Tightness: A feeling of pressure or squeezing in the chest.
Exercise-Induced Symptoms: Coughing, wheezing, or shortness of breath during or after physical activity.
🛡 Crucial Precautions
Shake Inhaler Well: Always shake the MDI vigorously for 5 seconds before each puff to ensure proper mixing of the medication.
Prime New Inhalers: If the inhaler is new or hasn't been used for several days, prime it by spraying a few test puffs into the air away from the face until a fine mist appears.
Check Expiration Date: Ensure the medication has not expired. Expired medication may be less effective.
Clean Spacer Regularly: Wash the spacer device at least once a week with warm water and mild detergent, air dry completely without wiping to prevent static.
Monitor for Side Effects: Observe for potential side effects such as jitters, increased heart rate (with rescue inhalers), or oral thrush (with steroid inhalers).
🍽 Dietary Directions & Restrictions
Post-Inhalation Oral Care: After using a corticosteroid inhaler, have the child rinse their mouth thoroughly with water and spit it out to prevent oral thrush. Brushing teeth afterward is also beneficial.
Hydration: Encourage adequate fluid intake, especially during asthma exacerbations, to help thin mucus and ease breathing.
Avoid Irritants: While not a dietary restriction, avoid foods or beverages that may trigger reflux, which can sometimes exacerbate asthma symptoms in sensitive individuals.
No Specific Food Restrictions: There are no general dietary restrictions directly associated with the use of metered dose inhalers themselves, beyond managing potential side effects like oral thrush.
⚠️ Attendant Guidelines
Follow Asthma Action Plan: Adhere strictly to the child's individualized asthma action plan provided by their healthcare provider.
Emergency Situations: Seek immediate medical attention if the child's breathing difficulty worsens rapidly, lips or fingernails turn blue, or they have trouble speaking.
Correct Dosage: Never exceed the prescribed number of puffs or frequency of use without consulting a healthcare professional.
Do Not Share: Inhalers are prescribed for individual use and should never be shared with others.
Proper Storage: Store inhalers at room temperature, away from extreme heat or cold, and out of direct sunlight.
🩺 Physician's Perspective
Demonstrate Technique: Parents/guardians should be able to confidently demonstrate the correct inhaler technique with a spacer to their physician or nurse.
Regular Follow-ups: Schedule regular appointments to review the child's asthma control, adjust medication as needed, and re-evaluate inhaler technique.
Personalized Action Plan: Ensure the family has a clear, written asthma action plan detailing daily management and steps for worsening symptoms.
Adherence is Key: Emphasize that consistent and correct use of controller medications is vital for preventing asthma attacks and improving quality of life.
Environmental Triggers: Advise on identifying and minimizing exposure to environmental asthma triggers in the home and school.
🎓 Academic & Nursing Corner
Patient Education: Educate parents/guardians and older children on the purpose, correct technique, and maintenance of MDIs and spacers.
Technique Assessment: Observe and assess the child's and caregiver's inhaler technique, providing constructive feedback and re-demonstration as needed.
Spacer Selection: Understand the different types of spacers available (e.g., valved holding chambers) and their appropriate use for various age groups.
Documentation: Document patient education provided, demonstrated technique, and any observed challenges or side effects.
Recognizing Poor Technique: Identify common errors such as not shaking the inhaler, incorrect breathing coordination, or inadequate spacer seal.
🔬 Clinical Reference Index
MDI Components: Comprises a pressurized canister containing medication, a metering valve, and an actuator.
Mechanism of Action: Delivers a precise dose of medication as a fine mist, which is inhaled into the lungs.
Spacer Functionality: Reduces the velocity of the aerosolized medication, allowing for better coordination of inhalation and minimizing oropharyngeal deposition.
Common Medications: Includes bronchodilators (e.g., albuterol, levalbuterol) and inhaled corticosteroids (e.g., fluticasone, budesonide).
Flow Rate & Coordination: Optimal MDI use requires slow, deep inhalation coordinated with actuation, which spacers facilitate, especially in children.