blow-by


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blow-by

(blō′bī″)
An imprecise method of oxygen delivery in which an oxygen source (such as a tube connected to a pressurized gas canister) discharges oxygen in front of the nostrils or mouth of the patient.

Patient care

It is used primarily to supply supplemental oxygen to infants, neonates, and toddlers, who may not tolerate wearing other oxygen delivery systems (such as a nasal cannula or face mask).