Clinical Procedures - Spacer-Devices
A chamber through which the drug passes prior to inhalation, with a one-way valve at the mouthpiece. By slowing the velocity of aerosol ejected by the MDI, spacers reduce residue in the mouth and increase delivery to the lungs. They also reduce the coordination required for effective drug delivery using the MDI alone. They are, therefore, useful in children, the elderly and during acute exacerbations. Spacers can be bulky and need frequent cleaning. Adult spacers • Remove cap from inhaler and shake • Insert into end of spacer • Sit upright, breathe out completely, and insert mouthpiece of spacer, sealing with lips • Depress the canister once • Take a deep breath: • Small volume spacers will whistle if inhaling too quickly • Hold your breath for 10 seconds or as long as is comfortable • Remove the spacer and exhale • Recover before taking the next dose. Spacer with mask (young children) • Remove cap from inhaler and shake • Insert into end of spacer • Place mask over mouth and nose of child • Encourage child to breathe normally • Once breathing pattern established, depress the canister once • Allow child to breathe in and out a further 5 times • Allow child time to recover before giving the next dose: • D A similar 'multiple breath' technique can be used in adults.
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