Chapter 28
Respiratory Care
567
Table 28.4 Oxygen Delivery Devices—cont'd
Delivery Device
Liter Flow Description
Tips for Use
Partial rebreathing mask
6–15 L/min
Mask with bag attached that traps carbon dioxide for rebreathing to lower pH levels; ports on the side of the mask allow most exhaled air to discharge.
When used correctly, rebreathing bag will not collapse during inha- lation; if collapse occurs, increase fl ow rate according to health-care provider’s orders.
6–15 L/min
Prevents the patient from rebreath- ing any exhaled air; it escapes through a one-way valve that does not allow room air to enter. The bag traps oxygen as a reservoir for inhalation; only delivery device that can provide 100% oxygen when set at 15 L/min.
When used correctly, rebreathing bag will not collapse during inha- lation; it should remain at least half full. If it does not, increase the oxygen fl ow rate according to health-care provider’s orders.
Nonrebreathing mask
24%–80% Contains a plastic valve between the tubing from the oxygen source and the mask, which allows a pre- cise mix of room air and oxy-
The health-care provider orders percentage of oxygen, not liter fl ow. You must check the dial or adapter to determine the liter fl ow necessary to equal the oxygen per- centage and set the fl owmeter accordingly.
Venturi mask
gen to equal a speci fi c percentage of oxygen. The dial on the valve (or interchangeable adapter) indi- cates the liter fl ow to use to equal a speci fi c percentage of oxygen. This gives more exact control of inspired oxygen, especially for patients with COPD.
8–12 L/min
Used for patients who feel claus- trophobic with other masks because the top is open; allows for high amounts of humidity to be used because of the open top.
Oxygen delivery is not as precise, so it is important to assess oxygen saturation and signs and symptoms of hypoxia in your patient using this device.
Face tent
Continued
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