What is a common method of delivering supplemental oxygen therapy?

A nasal cannula is a common method of delivering supplemental oxygen therapy due to its versatility and comfort for the patient. It consists of two nasal prongs connected by a lightweight tube that delivers oxygen directly to the nostrils. This method allows for easy physical movement and does not obstruct the patient’s mouth, making it suitable for patients who need a lower flow of oxygen while still being able to eat, speak, or breathe comfortably.

It is widely used in various settings, including hospitals and home care, particularly for patients with chronic respiratory issues who require continuous oxygen support. The flow rates can typically range from 1 to 6 liters per minute, delivering an approximate oxygen concentration of 24% to 40%, depending on the patient's breathing pattern.

While other devices like the Venturi mask, face mask, and non-rebreather mask are also effective oxygen delivery methods, they are often used in specific situations where higher concentrations of oxygen are necessary or when patients need a more controlled delivery of oxygen. The nasal cannula stands out as a first-line option for many patients needing supplemental oxygen therapy in non-emergency situations.