How much oxygen can a nasal cannula deliver?

A nasal cannula typically delivers oxygen at a flow rate ranging from 1 to 6 liters per minute. This range is effective for providing low-flow supplemental oxygen to patients who require respiratory support but do not need high concentrations of oxygen. At this rate, the nasal cannula can deliver approximately 24% to 44% oxygen, depending on the flow rate and the patient's breathing pattern.

Higher flow rates are often associated with other devices, such as a simple face mask or a non-rebreather mask, which can provide more concentrated oxygen to patients in more critical situations. Therefore, understanding the appropriate flow rates for a nasal cannula is crucial for managing oxygen therapy effectively and ensuring patient safety.