Final answer:
A nasal cannula delivers a range of FiO2 percentages depending on the flow rate of the oxygen. Generally, at low flow rates, the FiO2 is around 24-28%, and at higher flow rates, it can reach up to 40-44%. Healthcare professionals should monitor the patient's oxygen saturation to ensure they are receiving the correct amount of oxygen.
Step-by-step explanation:
A nasal cannula is a device used to deliver supplemental oxygen to a patient. It consists of two small plastic prongs that fit into the patient's nostrils and a tube that connects the prongs to an oxygen source. The amount of oxygen delivered by a nasal cannula is measured by the fraction of inspired oxygen (FiO2).
A standard nasal cannula typically delivers a FiO2 of around 24-44%, depending on the flow rate of the oxygen. At a flow rate of 1-2 liters per minute (L/min), the FiO2 is approximately 24-28%. At a flow rate of 4-6 L/min, the FiO2 is approximately 32-36%, and at a flow rate of 8-10 L/min, the FiO2 is approximately 40-44%.
It's important to note that the FiO2 can vary depending on factors such as the patient's breathing pattern, the fit of the cannula, and the oxygen source. Therefore, it's crucial for healthcare professionals to regularly assess the patient's oxygen saturation level to ensure they are receiving the appropriate amount of oxygen.