What is the flow rate for a nasal cannula in liters per minute?

The flow rate for a nasal cannula typically ranges from 1 to 6 liters per minute. This range is established based on the goals of providing supplemental oxygen while still allowing for comfort and mobility for the patient. At this flow rate, the nasal cannula can deliver approximately 24% to 44% of oxygen concentration, depending on the patient's breathing patterns and the specific flow rate used.

Using lower flow rates helps to ensure that the oxygen is delivered effectively without overwhelming the patient, making it a common choice for those who require mild to moderate oxygen support. Maintaining this flow range also minimizes the risk of complications such as nasal mucosa irritation or dryness that can occur with higher flow rates. Therefore, understanding the appropriate flow rates for devices like the nasal cannula is crucial for patient care in emergency medical situations.