Thank you again to everyone for your replies, advice and support throughout this thread, my mother and I appreciate it greatly!
Good news, her new ResMed machine has arrived and a member of the hospital respiratory team has taken a look at it for us and assisted us with setting it up.
She spent her first night on the new machine last night, she found it comfortable and didn't notice any difference in it's function throughout the night from the Philips machine, so that is good
The respiratory team lowered her pressure settings a little bit to see how she goes with a little lower pressures (from 22/10 down to 18/8, IPAP/EPAP), so we will see how that goes and at her upcoming respiratory doctor appointment he can decide what to do from there in regards to the settings.
I checked her oxygen level with a finger pulse oximeter last night about 1.5hrs after she fell asleep and it was down to 82% which alarmed me, she woke up and wanted me to re-test it again straight away and it was 95%... Due to the huge disparity between the numbers I waited 5 minutes and tested it again and it was 92%, so hoping that the first reading was a mis-test somehow.
I tested it again a few hours later and it was 90%, then again when she woke up in the morning and it was 91%.
Due to her COPD and hypercapnia she is on a target oxygen saturation range of 88-92% so these seem good, aside from the one off 82% reading!
For comparison, she used to give readings during the night of between 92% and 96% when on the previous Philips machine on the slightly higher pressures.
I will monitor it again occasionally over the next couple of nights just to keep an eye on it but then just leave it in the hands of the doctors, nobody wants to be woken up constantly, perhaps the doctor will get her to wear a pulse oximeter to sleep for a while to see how it goes.
Thank you again everyone, this forum is a wonderful resource
