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spa·cer

(spā'sĕr),
A device attached to a metered-dose inhaler that aids delivery of inhaled medications.

spacer

[spās′ər]
Etymology: L, spatium, space
on a metered dose inhaler, a chamber between the inhaler canister and the patient's mouth where droplets of medication can slow down and evaporate so that there is less direct impact on the oropharynx, with more medication delivered to the lower respiratory tract instead of being lost in the mouth. This is especially helpful for children. See also metered dose inhaler.
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Metered dose inhaler with spacer

spa·cer

(spās'ĕr)
An extension device for a metered-dose inhaler; it is designed to eliminate the need for hand-breath coordination and to reduce the deposition of large aerosol particles in the upper airway.

spacer

(spā′sĕr)
A specially shaped container that improves the delivery of inhaled aerosols, such as beta2 agonists, steroids, and other antiasthmatic drugs, to the bronchi and lungs. Spacers form a channel between metered dose inhalers and the mouth through which medicated mists can be inhaled. They improve the performance of antiasthmatic drugs because without them, a large quantity of inhaled medications end up in the mouth, on the palate, on the buccal mucosa, or on the tongue and fail to reach their intended target in the lower airways.

Patient care

Spacers improve the delivery of inhaled drugs to any patient who cannot coordinate the use of metered dose inhalers, and in all patients who used inhaled steroids. They are also recommended for young children, e.g. under the age of 6.

References in periodicals archive ?
To achieve better image quality on both the stego image and the extracted secret image without extra storage space, the proposed DCT-based approach hides the most significant DCT coefficients of each DCT secret block into non-significant parts of each DCT cover block.
The ministry's roads projects & planning director Raed Al Salah said the project will cover blocks 908, 906 and 944.
Then they are coming to these huge complexes that cover blocks and blocks, the hugeness of the urban centre.
The licensing round lasting between August 1 and January 5, 2012 cover blocks 43, 03, 10/11, 41, 11-2/11, 05-3/11, 50, 22/03 and 12/11 in Nam Con Son, Phu Quoc and Malay-Thochu basins, Petrovietnam said in a statement.
Lundin's first PSC cover Blocks 2, 6, 7 and 8 located in the onshore Ogaden Basin.
Fans group Reclaim The Kop had the original idea for the initiative and John Mackin from the organisation is hopeful that more and more Liverpool supporters will give it their backing by moving their season tickets to Block 1892 which will cover blocks 304, 305 and 306 of the Kop from next season.
Nine of the leases are on the shelf in water depths of less than 70 feet and two of the leases cover blocks in water depths of 8,000 feet.
They serve as force multipliers, allowing firefighters to cover blocks of collapsed homes searching for survivors.
More moose were seen in open blocks during second searches with increased flying time in both fixed-wing aircraft (100%) and helicopters (160%) than in dense forest cover blocks (12% and 43%, respectively).
Designed as an integral part of architect Helmut Schulitz's own steel-framed house in Los Angeles, the open cover blocks sun without being oppressive.
Of the 11 high bids, nine cover blocks on the Gulf of Mexico Shelf and two are on deepwater blocks.