Inhaler Spacer Devices and Technique: What Pharmacy Technicians Should Know
Understand inhaler spacer devices, proper technique, and why correct inhaler use is critical for patient outcomes and PTCB prep.
Why Spacer Devices Matter
Studies show that up to 90% of patients use metered-dose inhalers (MDIs) incorrectly. Spacer devices, also called valved holding chambers, significantly improve medication delivery to the lungs by eliminating the need to coordinate actuation with inhalation. Pharmacy technicians should understand these devices to support pharmacist counseling efforts.
How Spacers Work
A spacer attaches to the mouthpiece of an MDI and creates a chamber where the aerosolized medication can suspend momentarily. This allows the patient to inhale the medication at their own pace rather than needing perfect timing. The spacer also reduces the amount of medication deposited in the mouth and throat.
Benefits of Spacer Use
- Increases lung deposition of medication by up to 50%
- Reduces oral thrush risk with inhaled corticosteroids
- Decreases the need for precise hand-breath coordination
- Especially beneficial for children and elderly patients
Common Spacer Devices
Popular Brands
AeroChamber Plus is one of the most widely prescribed spacer devices. OptiChamber Diamond and InspiraChamber are also commonly used. Some spacers include a whistle mechanism that alerts patients when they are inhaling too quickly.
Proper Technique Steps
Patients should shake the inhaler, attach it to the spacer, exhale fully, press the canister once, and then inhale slowly over three to five seconds. They should hold their breath for ten seconds after inhalation. For inhaled corticosteroids, rinsing the mouth afterward is essential.
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