Help interpret Sp02 report

[cybergoon]

I talked my fiancee into wearing my new CMS50F last night. I downloaded the data this morning and I do see some desats throughout the night, but there are a few spots throughout the night that I'm not sure what to make of. Here are some screen shots.

Here is the whole night...



Here is the first questionable event. It's not a desat, but I'm wondering if the flat line indicates that the lead may have come off briefly?



Here is the other one. This one shows desat occurred, but is also flat line, so again I am unsure if the lead came off?

[HoseCrusher]

I am not a medical professional... but I did drive past a Holiday Inn Express yesterday.

You need to go through the data using a 10 minute time segment. Whenever you come to a place where the line changes from color to gray, that indicates a lost signal. You need to hold down the left mouse button and draw a box around that area, including at least a minute of data to the right of the end of the gray area. Drawing a box around that section of the data will remove it from the data set for evaluation purposes.

The next thing is to review the oximetery report and see what it has to say.

The goal is to have no desaturations below 90%, and when you do desaturate you don't want to see a sudden rise in pulse rate.

A couple of things to keep in mind. You don't suddenly desaturate. If you see a sudden huge drop, it was most likely caused by finger movement or a quick loss in signal. It is possible to have your pulse rate suddenly shoot up and drop just as fast as it shot up. Also keep in mind that there is a time delay between SpO2 readings from your finger and your pulse rate. I think it takes around 20 seconds for your blood to travel from your heart to your finger. This means that you will see heart "arousals" occurring prior to desaturations. At times, the SpO2 level will gradually decrease, then you will see an increase in pulse rate followed by the SpO2 levels shooting up. I envision this as waking up and taking a deep breath.

It looks like the basal SpO2 will end up just under 95%. This is a good value, but I like to be above 96% myself. Between 4 and 5 there are some desaturations that you should take a close look at. If they are real and occur again, or keep occurring over several nights, I would suggest trying to adjust the sleep position to get off of the back. If this gets rid of them, fine. If not, it may be time to present the data to a medical professional for comment.

It looks like the average pulse rate will end up at around 75. That seems a little high to me, but it is in the normal range of 60 - 100. It seems that women have a little higher heart rate than men, but this is strictly observational based upon the small sample of people I have loaned my oximeter to for an overnight study (6 men and 8 women).