Quote from SDALPN
The vents are one way valves. They work as the patient exhales to prevent rebreathing exhaled air. (carbon dioxide) You should be fully trained on the equipment before taking care of a patient on equipment that you aren't familiar with. O2 with a bipap is common and the set up you are explaining is common. But not seen in PDN often.
Yes, I am familiar vents an the rationale behind the one way valve.
However, this is not a vent but a bi-pap (some could argue that they are the same).
The tubing, mouith piece, O2 conections, lines are all washed daily. When putting the bi-pap together, the first vent opening is just after the connection to the supplemenntal O2 supply. That appears to be possibly a one way valve, but I really never examined closely.
However, the vent that is at the connection between the bi-pap tube and the mouth piece is just a oval opening covered by a small white filter and the cover has slits--which allows air to escape. Still I don't know if the pt is getting the appropriate oxygenation through the bi-pap with supplemental O2 or if the vents allowing oxygen to escape decreasing his SPO2.
The bi-pap company swears that this is not the case but if the filterized vent is a 2 way opening, and because of this (without taking into consideration the other vent valve) it should follow that the pt is losing his high O2 supplementation--or at least to me.
As far as bi-pap in private duty. What can I say. This pt was constantly alarming throughout the night with lot SPO2 despite resp tx's, etc. Because of facial anomly, the pt could not tolerate the bi-pap mask. Finally, the resp therapist tried the mouth piece and it worked well, but took years for the pt to become accustomed to it. Now two years later, the pt can sleep at night without problems. The problem I see is once he is off the regular O2 mask with supplemental O2 and put on the bi-pap with same supplemental O2, his sats eventually fall and he gets low SPO2 alarms. If I put him back on the O2 mask and liquid O2 at same rate and stop the bi-pap, there is no a problem however, his sleep apnea continues--not that it is 100% with bi-pap, but it is much better.
That is the reason for my question - will a pt on bi-pap with high supplemental liquid O2 (6-12 L/m)have the same or better SPO2 with the bi-pap than if the pt were using only O2 mask with same rate of supplemental liquid O2?