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flow restricted oxygen powered ventilation device

flow re·strict·ed ox·y·gen pow·ered ven·ti·la·tion mask

/floh ri strik tid ok si juhn pou erd ven tl ey shuhn mask, mahsk/

Noun

A mechanical device with a valve that can be manually triggered either by a lever or a button. When the valve is open, oxygen flows at approximately 40 lpm. The device can produce positive pressure. It must be used with caution when ventilating patients, especially with potentially inelastic lungs, such as emphysema patients.