| Customization: | Available |
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| Type: | Surgical Supplies Materials |
| Material: | Medical Grade PVC |
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Traditional nasal cannula delivers flow rates of 2-6 L / min. But patients with respiratory distress can have much higher peak inspiratory flow rates. If the inspiratory flow rate of the patient is greater than what is being provided by the cannula, the patient will entrain room air into the lungs. This results in oxygen dilution, and the patient will not be receiving the precise amount of oxygen that is desired.
When high-flow nasal cannula, or HFNC, is used to deliver oxygen, the flow rates are much higher than can be achieved with traditional nasal cannula. This results in a greater delivery of prescribed oxygen into the lungs, and less entrainment of room air. The oxygen you want to deliver to your patients is not prone to the same effect of dilution!
Figure
1. Differences in oxygen delivery between traditional nasal cannula and high-flow nasal cannula (HFNC), a) when using the traditional nasal cannula, if the inspiratory flow rate of the patient is greater than what is being provided by the cannula, the patient will entrain room air into the lungs, resulting in oxygen dilution, b) when using HFNC, inspiratory flow rates of oxygen are higher, resulting in greater delivery of prescribed oxygen into the lungs, and less entrainment of room air.
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