The delivery of external oxygen (O2) depends on the condition. To prevent shock, O2 is often set high, such as 8 L /min. (liters per min). But, in someone with emphysema, for example, anything higher than 2 L/min can kill because the brain reacts differently to CO2 in the lungs in emphysema (reverse feedback than normal... normally we breathe in response to higher Co2 levels, triggering us to exhale and inhale).
Why would you need to do that anyway? If you need the concentrated O2 that a mask provides, then a nasal cannula is not affective.
For a flow rate of 4L/min of oxygen, the approximate FiO2 delivered through a nasal cannula is around 36%.
The cost of a nasal cannula can vary depending on the brand, supplier, and quantity purchased. On average, a nasal cannula can range from $1 to $5 per piece. It is recommended to check with different suppliers or medical equipment stores for specific pricing.
when its more that 24%
The highest liter flow rate of oxygen that should be administered via nasal cannula is 6 liters per minute. Beyond this flow rate, the cannula may not effectively deliver the intended oxygen concentration to the patient, and a different oxygen delivery system may be more appropriate.
36
The nasal cannula is designed to sit with the prongs facing downward. The two prongs should be inserted into the nostrils to deliver oxygen effectively. The curved part of the cannula should rest comfortably under the chin, ensuring a secure fit.
Wear a cannula so that it causes a minimum of discomfort. The nasal cannula is a small piece of plastic tubing that is attached to a larger tube which, in turn, connects to the oxygen container. The cannula has two small prongs that are inserted into the nostrils. If the prongs are curved, they should point downward inside the nostrils.
Nasal Cannula
up
dry blood
10 Liters is most manufacturer's recommended maximum