Fact sheet Equipment

Published on 6 Feb 2023


High flow nasal cannula

The high flow nasal cannula is similar to nasal prongs but is used for people who are having more difficulty in breathing, as it is able to supply more oxygen.

How does it work?

The device has short, soft prongs that sit just inside the nose. The prongs are connected to specialised tubes, which are connected to:

  • a heated water bath
  • a source of oxygen.

The intensive care team closely check to see whether enough oxygen is being given. To help monitor the person’s breathing, an oxygen saturation monitor will usually be attached to their finger or ear.

Are there any problems?

The most common problems are a dry or itchy nose, and minor soreness behind the ears. If there are problems, please let the staff know.

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