A cannula is a thin tube that doctors insert into a person’s body cavity, such as their nose, or into a vein. Doctors use them to drain fluid, administer medication, or provide oxygen. A person can ...

A nasal cannula is a medical device that provides supplemental oxygen therapy to people who have lower oxygen levels. There are two types of nasal cannulas: low flow and high flow. The device has two ...

ICU After high flow nasal cannula oxygen therapy, 15% of patients had to be intubated and mechanically ventilated, but the majority stepped down to regular oxygen therapy. SAN ANTONIO — Elderly ...