When visiting a home care patient receiving nasal O₂ at 2 L/min through an O₂ concentrator, you measure the FIO₂of the outlet gas as 0.63. Which of the following best explains this finding?

Question

Quizplus · Accepted Answer

The sieve pellets in an oxygen concentrator are responsible for removing nitrogen from the air to provide a higher concentration of oxygen. If the FIO2 is measured at 0.63, which is abnormally high for a 2 L/min flow, it suggests that the sieve pellets are not functioning properly and may be exhausted, allowing more nitrogen to pass through and falsely elevating the FIO2 reading.

When Visiting a Home Care Patient Receiving Nasal O2 at 2

When Visiting a Home Care Patient Receiving Nasal O₂ at 2