Which flow rates correspond to a nasal cannula?

The flow rates associated with a nasal cannula typically range from 1 to 6 liters per minute. This flow rate allows for supplemental oxygen delivery to a patient in a non-invasive manner. At these rates, the nasal cannula effectively provides oxygen, generally increasing the oxygen concentration inhaled by the patient while allowing them to breathe comfortably without significant obstruction.

Higher flow rates may lead to discomfort for the patient, as well as increased risk of drying the nasal mucosa. Therefore, it is essential to use the nasal cannula within this recommended range to maintain both efficacy and patient comfort while delivering oxygen.