Post Reply 
Oximeter Info
Author Message
app1nag Offline

Preferred Members

Posts: 29
Joined: Dec 2015

Machine: resmed airsense 10 auto
Mask Type: Nasal pillows
Mask Make & Model: Swift
Humidifier: same as machine
CPAP Pressure: 10-20
CPAP Software: ResScan SleepyHead

Other Comments:

Sex: Male
Location: 10956

Post: #1
Oximeter Info
[attachment=2049] Based on recommendations posted here, I recently purchased a CMS 50D+ oximeter. I finally got things up and running and was wondering if I could get some feedback from users that have been using an oximeter for a period of time. I've attached last nights results and am concerned about the drop in oxygen around the 2am time period. There are also gaps in the graph where oxygen levels are at zero. Is that a software issue or am I actually getting no oxygen during that time? AHI for the night was less than 2.

Thanks in advance for all your great advice.
01-21-2016 08:28 AM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
app1nag Offline

Preferred Members

Posts: 29
Joined: Dec 2015

Machine: resmed airsense 10 auto
Mask Type: Nasal pillows
Mask Make & Model: Swift
Humidifier: same as machine
CPAP Pressure: 10-20
CPAP Software: ResScan SleepyHead

Other Comments:

Sex: Male
Location: 10956

Post: #2
RE: Oximeter Info
[attachment=2050] I guess looking at the data itself (not in graph form), makes it look like I had a decent night, oxygen-wise.
01-21-2016 08:36 AM
Find all posts by this user Post Reply Quote this message in a reply
Possum Offline

Advisory Members

Posts: 254
Joined: Oct 2015

Machine: Resmed Airsense Autoset A10
Mask Type: Nasal pillows
Mask Make & Model: Airfit P10
Humidifier: (included in CPAP model)
CPAP Pressure: 8-12
CPAP Software: ResScan SleepyHead

Other Comments: Innovo CMS-50F+ pulse oximeter

Sex: Male
Location: San Diego, California, USA

Post: #3
RE: Oximeter Info
Overall your oxygen levels are excellent. You only have one "witching hour" starting around 1:50 AM and ending around 2:30 AM, but it actually doesn't correlate very well with features in the flow rate graph. You had a couple of hypopneas, but not until around 2:15 AM - I wonder if the clocks on your CPAP and oximeter are out of sync? You might want to check that, as both have a tendency to drift. In any case, once the machine caught the hypopneas and started increasing pressure, your witching hour ended, but it seemed to take a little longer than it should have. As for the gaps and spikes, those are probably just interruptions in signal from the oximeter. Your SP02 levels don't reach 0, unless you're dead.

In short, it appears that your therapy is going well, and I wouldn't be too concerned. If you really want to nitpick, you could consider raising your minimum pressure slightly to see if cleans up some of the H and OA events.
01-21-2016 12:41 PM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
app1nag Offline

Preferred Members

Posts: 29
Joined: Dec 2015

Machine: resmed airsense 10 auto
Mask Type: Nasal pillows
Mask Make & Model: Swift
Humidifier: same as machine
CPAP Pressure: 10-20
CPAP Software: ResScan SleepyHead

Other Comments:

Sex: Male
Location: 10956

Post: #4
RE: Oximeter Info
That's excellent news...thanks ! My at-home sleep test showed oxygen levels in the 75% range for far too long of a time frame. I thought a zero oxygen level may have meant I stopped breathing for a bit.
I will try a higher minimum pressure this evening. Lastly, I wonder if there is a way to better sync up the two devices.
(This post was last modified: 01-21-2016 02:11 PM by app1nag.)
01-21-2016 02:06 PM
Find all posts by this user Post Reply Quote this message in a reply
Possum Offline

Advisory Members

Posts: 254
Joined: Oct 2015

Machine: Resmed Airsense Autoset A10
Mask Type: Nasal pillows
Mask Make & Model: Airfit P10
Humidifier: (included in CPAP model)
CPAP Pressure: 8-12
CPAP Software: ResScan SleepyHead

Other Comments: Innovo CMS-50F+ pulse oximeter

Sex: Male
Location: San Diego, California, USA

Post: #5
RE: Oximeter Info
Sleepyhead gives you the option to sync CPAP and oximetry data with respect to time by either relying on the internal clocks of the CPAP and oximeter, which is generally not recommended unless you are prisitine about ensuring the time is correct on both devices, or you can sync the data manually by simply starting the two devices at the same time.
01-21-2016 02:33 PM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
membus Offline

Members

Posts: 17
Joined: Dec 2015

Machine: ResMed S9 AutoSet
Mask Type: Nasal mask
Mask Make & Model: F&P Eson Nasal Mask
Humidifier: ResMed H5i
CPAP Pressure: 6-10 (EPR 3)
CPAP Software: SleepyHead

Other Comments: Therapy started on December 31st, 2015.

Sex: Male
Location: Istanbul

Post: #6
RE: Oximeter Info
Hi app1nag,

I also got the CMS 50D+ and used it twice in 2 weeks. The second was last night. I had woken up at 5 am and was awake for an hour and then had another hour to sleep. I decided to sleep without APAP and see how my SpO2 would be.

When importing the data to SleepyHead I chose the option where you can select a previous sleep session, as I started them both at the same time. When checking the graphs I see that the synch is fine.

As Possum already mentioned 0 oxygen levels means you are dead. Just try this if you want (I did try): With the oximeter attached to your finger, hold your breadth for as long as you can without pushing too hard and you'll see the drop in SpO2 levels maybe after 10-15 seconds.

Regarding the drop in SpO2 levels during 2am, I can only say that they may be due to some misreadings caused by the oximeter moving on the finger. I you haven't done it, I suggest you fix the unit to your finger with a medical tape which won't leave any adhesive residues once off. This will ensure a better reading throughout the night.

http://www.fleksidea.com
01-21-2016 03:04 PM
Find all posts by this user Post Reply Quote this message in a reply
nsherry61 Offline

Members

Posts: 16
Joined: Jan 2016

Machine: ResMed AirSense 10 Autoset
Mask Type: Nasal pillows
Mask Make & Model: Philips Dreamwear Under the Nose nasal mask
Humidifier: ResMed Airsense 10
CPAP Pressure: 10, I think
CPAP Software: ResScan SleepyHead

Other Comments:

Sex: Male
Location: Norwell MA

Post: #7
RE: Oximeter Info
All the big spo2 drops are also associated with gaps in the data for both pulse and spo2, so the advice from membus above is right on. You are almost surely dealing with instrumental artifacts that will likely not occur once the instrument is stabilized on your finger.
01-21-2016 03:12 PM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
Possum Offline

Advisory Members

Posts: 254
Joined: Oct 2015

Machine: Resmed Airsense Autoset A10
Mask Type: Nasal pillows
Mask Make & Model: Airfit P10
Humidifier: (included in CPAP model)
CPAP Pressure: 8-12
CPAP Software: ResScan SleepyHead

Other Comments: Innovo CMS-50F+ pulse oximeter

Sex: Male
Location: San Diego, California, USA

Post: #8
RE: Oximeter Info
I was also tempted to dismiss the drop around 1:50 to 2:30 AM as artifactual due to the probe moving out of a good reading position, but artifacts don't typically last that long nor do they suddenly recover unless you wake up and reposition the probe on your finger. And you're male, so I don't imagine you have residual nail polish that's interfering with the readings intermittently. Wink

I would continue to gather additional oximetry data, at least a week's worth. That will give you a better sense of what's actually going on with your SPO2 levels during therapy. Also, I'm not sure which finger(s) you use for the probe, but I've found that my middle finger generates the cleanest signal with the fewest artifacts.
(This post was last modified: 01-21-2016 03:25 PM by Possum.)
01-21-2016 03:22 PM
Find all posts by this user Post Reply Quote this message in a reply
app1nag Offline

Preferred Members

Posts: 29
Joined: Dec 2015

Machine: resmed airsense 10 auto
Mask Type: Nasal pillows
Mask Make & Model: Swift
Humidifier: same as machine
CPAP Pressure: 10-20
CPAP Software: ResScan SleepyHead

Other Comments:

Sex: Male
Location: 10956

Post: #9
RE: Oximeter Info
I had a small rubber band around the device and my pointer finger. Sometime during my sleep, my finger became irritated so I quickly shifted it to my index finger, but did not secure it with the rubber band. I will try with medical tape tonight. Thanks
(This post was last modified: 01-21-2016 03:26 PM by app1nag.)
01-21-2016 03:25 PM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
membus Offline

Members

Posts: 17
Joined: Dec 2015

Machine: ResMed S9 AutoSet
Mask Type: Nasal mask
Mask Make & Model: F&P Eson Nasal Mask
Humidifier: ResMed H5i
CPAP Pressure: 6-10 (EPR 3)
CPAP Software: SleepyHead

Other Comments: Therapy started on December 31st, 2015.

Sex: Male
Location: Istanbul

Post: #10
RE: Oximeter Info
(01-21-2016 03:25 PM)app1nag Wrote:  I will try with medical tape tonight.

What I did was not only tape the oximeter, but also made one round around my finger and tied it to the oximeter, so it wouldn't come out. Did it like this because my first time I had only taped the oximeter to have a firmer grip but that didn't help and it came off.
01-21-2016 03:50 PM
Find all posts by this user Post Reply Quote this message in a reply
Post Reply 


Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  Info on INSPIRE sleepytimegal 8 324 11-22-2016 06:54 PM
Last Post: sleepytimegal
  [Equipment] CMS 50F PLUS OLED Wrist Color Pulse Oximeter with Innovo┬« SnugFit probe Ham Radio 5 381 11-15-2016 05:03 PM
Last Post: JuicyJuices
  How do I post Sleepyhead Info? Saskie 8 237 11-11-2016 11:30 PM
Last Post: trish6hundred
  Oximeter Normal Graph shermantank45 14 590 11-03-2016 06:00 PM
Last Post: kwhenrykerr
  Deciphering pulse rate data from oximeter sean333 5 421 09-01-2016 02:41 PM
Last Post: trish6hundred
  CMS50F external oximeter probe on CMS50D+? rost 4 369 07-15-2016 05:25 PM
Last Post: rost
  Which pulse oximeter to buy _cy_ 18 1,958 06-15-2016 07:54 PM
Last Post: Hmm888

Forum Jump:

Who's Online (Complete List)