The Nasal Cannula works by delivering oxygen-rich air directly to the patient's lungs through their nostrils. When the patient breathes in, the air flows through the prongs and into their nasal passages. From there, it travels down the trachea and into the lungs, where it is used to oxygenate the blood.
The oxygen flow rate is typically measured in liters per minute (LPM), with a range of 1-6 LPM being common for most patients. The flow rate may be adjusted based on the patient's needs and condition, as well as the oxygen saturation level measured by a pulse oximeter.
One advantage of the Nasal Cannula is that it allows the patient to eat, drink, and speak while receiving oxygen therapy. This is because the prongs do not completely block the nostrils, allowing the patient to breathe normally through their nose. However, some patients may experience dryness or irritation in their nasal passages or throat, which can be alleviated with the use of a humidifier.
