I have a question to ask of those of you who have/had a pt who is on Bi-Pap with supp O2 during HS.
My pt must maintain a SPO2 >94% (per order). He uses the bi-pap at night and it is connected to supplemental liquid O2 whose levels can be 6-12 L/min to maintain SPO2. I have noted that when he goes to bed and is connected to the bi-pap with the supp O2, his sats tend go down very quickly after connection. Before he goes to bed, his is just connected to liqui O2, mask and tubing; his sats are maintained at that time.
I have also noted that his bi-pap has two vents (one near the connection where the O2 comes into the large bi-pap tubing and another vent and filter just before the tubing goes into mouth piece (he is a mouth breather and cannot use a mask).
I have no way to determine whether the two vents in the bi-pap set up is actually decreasing the pt's O2 concentration by allowing the O2 to escape before it gets to him. I do note as the nite progresses so does the level of supplemental O2 to maintain a spo2 >94. He is connected to a SPO2 finger probe so I know when his sats drop and I have to take action.
Has anyone else noted/ experieced anything similar?