Directions for Use of High Flow Nasal Cannula

A high-flow nasal cannula is a device used to deliver oxygen to a person through the nose. A nasal cannula is a preferable method of oxygen administration if a person has to continuously receive oxygen from a canister because it replaces an oxygen mask. A nasal cannula is much more comfortable and convenient to use than a mask and it is easier to remove and replace than a mask because it is simply a rubber oxygen tube with a fixture that directs the flow of oxygen into the nose.

Use of a Nasal Cannula

• A nasal cannula usually comes in a package with a length of oxygen tubing already attached. When laid out, the oxygen tubing splits into two cannula tubes and makes a loop. At the center of the top of the loop is a one inch cylindrical plastic piece slightly larger in diameter than the tubing. There will be two short tubes sticking out of the top of this piece. Insert these tubes into the nostrils. The rest of the tubing loop is tucked behind each ear to keep the device in place. The oxygen tubing should stay on the front of the person receiving oxygen. To remove the cannula, simply pull the tubing from behind the ears and remove from the nose.

Administering Oxygen With a Nasal Cannula

• The flow of oxygen must be reduced to no higher than 6 liters per minute. This is to prevent drying out the tissues of the nose and throat. If a person requires oxygen at a higher flow rate, a mask may be required. A nasal cannula is intended for prolonged continuous use and can be used indefinitely if needed. The duration and frequency of oxygen administration should be determined by a doctor but as long as compliance is not an issue, the person receiving oxygen can remove the cannula at any time if discomfort occurs or if removal is required.