If you are the primary care giver for your mother, and if she is on BIPAP, please try to take charge of few things. This is very important that you learn these and should not depend on somebody else.
Learn how to use a oximeter to check her oxygen and pulse. Please ask your doctor or nurse to teach you. A simple oximeter looks like this:
The oxygen value should be in the range 91 to 99. If it goes below 90 and remains below 90, you need to take immediate action which will vary based on the situation.
The normal pulse for adult should be between 60 and 100 and may fluctuate outside this range and if it does and remains high or low will need immediate action and will vary based on situation.
Learn to operate and set the BIPAP machine. Request your doctor/technician to teach you. Most of the BIPAP machine settings are quite straight forward
There are these 5 values that are important, namely, Mode, IPAP Min, IPAP Max, EPAP and Tidal Volume( A rough estimate of TV is 7* your weight in KG). Your doctor/Technician should visit your mother and help you set these values. For example the value used by my wife is below:
The BIPAP machine I am using is this:
The Example values will look like this and will vary from person to person.