RT Clinic: Basics of using an MDI (Meter Dose Inhaler)+ Bonus clip on an Inspiratory Training Device

Summary

This educational video script focuses on the proper use of metered dose inhalers (MDIs), emphasizing the importance of using a valved holding chamber or spacer to optimize medication delivery. It compares CFC and HFA propellants and explains the correct technique for inhaler use, including shaking, exhaling, and slow, deep breaths. The script also addresses common mistakes and highlights the need for proper cleaning and maintenance of inhalers. Additionally, it introduces an in-check valve device to ensure patients achieve the necessary inspiratory flow for effective therapy.

Takeaways

• 🌐 The video discusses the correct usage of metered dose inhalers (MDIs), emphasizing common mistakes and how to use them effectively.
• 💨 MDIs have evolved from using CFC propellants to HFA propellants, which deliver medication differently and may affect how patients feel the medication.
• 🔄 It's crucial to use a valved holding chamber or spacer with MDIs to enhance the delivery of medication to the lungs.
• 👥 The video demonstrates different types of holding chambers, highlighting the benefits of valved chambers over simple spacers in terms of medication delivery.
• 💡 The importance of shaking the inhaler before use is stressed, as this ensures the medication and propellant are mixed properly.
• 🌀 The technique of exhaling fully before taking a puff, followed by a slow, deep inhalation, is detailed as essential for effective MDI use.
• 🕒 Holding the breath for five to ten seconds after inhalation is key to getting the medication to the lower airways.
• 🚿 Rinsing the mouth after using certain inhalers is advised to prevent side effects like oral thrush, especially with steroid medications.
• 🧼 Cleaning the inhaler and spacer regularly with warm water and detergent is recommended to maintain optimal performance.
• 🏥 The video suggests using an in-check valve as a training device to ensure patients have the correct inspiratory flow for their inhaler.

Q & A

What is the main focus of the video?

The main focus of the video is to educate viewers on the proper use of metered dose inhalers (MDIs), including the importance of using a valved holding chamber or spacer for optimal medication delivery.

Why have CFCs been replaced with HFA propellants in MDIs?

CFCs have been replaced with HFA propellants because CFCs were found to deplete the ozone layer, whereas HFAs are more environmentally friendly and have less impact on the ozone.

What is the difference between a valved holding chamber and a spacer for MDIs?

A valved holding chamber has a one-way valve that only allows the patient to breathe in, while a spacer is a simple tube that holds the medication. The valved holding chamber can provide two to three times more medication per dose compared to a spacer.

Why is it important to clean the actuator of an MDI?

It is important to clean the actuator of an MDI because it can become 'gunked up' over time, which can affect the delivery of the medication. Cleaning with warm water and detergent and allowing it to air dry is recommended.

How should one prepare an MDI for use, according to the video?

To prepare an MDI for use, one should shake the inhaler for at least five to ten seconds, exhale fully, place the inhaler in the mouthpiece of the holding chamber, and then actuate the inhaler while beginning a slow, deep breath.

What is the significance of the inspiratory flow rate when using an MDI?

The inspiratory flow rate is significant because it affects how much medication is delivered to the lungs. A smooth, slow breath is recommended to ensure the medication reaches the lower airways effectively.

Why is it recommended to hold the breath for five to ten seconds after inhaling from an MDI?

Holding the breath for five to ten seconds allows the medication to deposit in the lungs and start working on the muscles around the airways, which helps to loosen them and improve breathing.

What is the purpose of the 'in check' device mentioned in the video?

The 'in check' device is a training tool that helps ensure patients can generate the right amount of inspiratory flow for their prescribed medication, whether it's an MDI or a Dry Powder Inhaler (DPI).

How can the 'in check' device help patients with MDIs?

The 'in check' device can help patients with MDIs by training them to inhale at the correct speed and volume, which is crucial for the proper deposition of medication in the lungs.

What is the role of a spacer or valved holding chamber in improving MDI therapy?

A spacer or valved holding chamber improves MDI therapy by allowing more medication to reach the lungs, reducing the risk of side effects from medication deposited in the mouth and throat, and ensuring the medication is delivered as prescribed.