Post Reply 
Interpreting Oximeter results
Author Message
Sn00zeAlarm Offline

Preferred Members

Posts: 72
Joined: May 2015

Machine: Resmed A10 autoset
Mask Type: Nasal pillows
Mask Make & Model: Resmed P10
Humidifier: Builtin
CPAP Pressure: 5-7
CPAP Software: SleepyHead

Other Comments: Heated hose

Sex: Male
Location: Florida US

Post: #1
Interpreting Oximeter results
I did my first night with the oximeter, and it looks about like I expected, which is normal most of the time. But there were 5 times the SpO2 dropped to 88 or below. The typical sawtooth pattern was dominant for about 45 minutes starting at 6am, swinging from a high of 98% to a low of 86 to 91, about every 80 seconds.

My sleeping pulse is only 55, and it would usually rise a little bit as the O2 hit bottom.

Here is a closeup of the 6am section. I know that if you hold your breath completely, the SpO2 level drops slowly, resulting in the sawtooth. So does this indicate I am stopping breathing for 60 seconds at a time, over and over? I am guessing that this only happens part of the night due to postural reasons.

   
05-13-2015 09:56 AM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
trailrider Offline

Preferred Members-2

Posts: 304
Joined: Feb 2015

Machine: A10 Autoset for Her
Mask Type: Nasal mask
Mask Make & Model: Eson or P10
Humidifier: autoset
CPAP Pressure: 6-12 DME, 7-13 me
CPAP Software: SleepyHead

Other Comments: engineer. EPR at 3, unheated hose, humidity at 2. Routine hose entanglement.

Sex: Female
Location: Ontario

Post: #2
RE: Interpreting Oximeter results
My opinion: Keep the monitoring up for several days and see if there are consistent patterns. Moving during sleep can dislodge the device which might cause a drop.

Do you use a CPAP? If so can you sync up the records from the CPAP to the oximeter? That would show you if reaction to apnea is a concern.

Other health issues like COPD, or diabetes (poor circulation) may come into play.

So monitor for a week and then take the results to your doctor, if you are concerned.
05-13-2015 12:41 PM
Find all posts by this user Post Reply Quote this message in a reply
trish6hundred Offline

Advisory Members

Posts: 6,446
Joined: May 2012

Machine: Resmed S9 AutoSet for Her
Mask Type: Full face mask
Mask Make & Model: Fisher & Paykel Simplus
Humidifier: H5i Heated Humidifier
CPAP Pressure: 10 - 7-20 Cm H2O
CPAP Software: Not using software

Other Comments: I started CPAP in 2008. Totally blind since birth.

Sex: Female
Location: Missouri, USA

Post: #3
RE: Interpreting Oximeter results
Hi Sn00zeAlarm,
WELCOME! to the forum.!
Hang in there for more answers to your question and help with your graph.
Much success to you.

trish6hundred
05-13-2015 01:31 PM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
Sn00zeAlarm Offline

Preferred Members

Posts: 72
Joined: May 2015

Machine: Resmed A10 autoset
Mask Type: Nasal pillows
Mask Make & Model: Resmed P10
Humidifier: Builtin
CPAP Pressure: 5-7
CPAP Software: SleepyHead

Other Comments: Heated hose

Sex: Male
Location: Florida US

Post: #4
RE: Interpreting Oximeter results
No CPAP. I am collecting evidence to see if one would help me, to present to a doctor. I had a full sleep study some years ago and it showed definite apnea events, but only during the latter part of the night and not soon enough to switch to the titration part of the test. The tech said the events started when I rolled onto my back.

I always go to sleep on my side, but often wake up on my back. The various ways to not sleep on my back do not work for me (I've tried them). My wife reports that if I am on my back, I usually snore loudly at which time she pokes me.

I will continue with the oximeter for a week, dumping all the results into SleepyHead so it can generate meaningful statistics. I am not so concerned about convincing Medicare that they should pay for it - I'll buy the machine myself if necessary. But I still need the Rx.
(This post was last modified: 05-13-2015 01:38 PM by Sn00zeAlarm.)
05-13-2015 01:33 PM
Find all posts by this user Post Reply Quote this message in a reply
trailrider Offline

Preferred Members-2

Posts: 304
Joined: Feb 2015

Machine: A10 Autoset for Her
Mask Type: Nasal mask
Mask Make & Model: Eson or P10
Humidifier: autoset
CPAP Pressure: 6-12 DME, 7-13 me
CPAP Software: SleepyHead

Other Comments: engineer. EPR at 3, unheated hose, humidity at 2. Routine hose entanglement.

Sex: Female
Location: Ontario

Post: #5
RE: Interpreting Oximeter results
In my opinion:
-Once you have apnea events you always will. Though side sleeping helps, as you know.
-The study folks should have booked you for a second night for titration.
-Sounds like you are ok for the most part, but it is worse for you during REM sleep, which is where your desats are likely happening (guessing based on the 6am time of your graph)
-You might be one of those borderline cases. Sure it helps, but you only need it for an hour or so a night and for maybe 5 x 10 seconds.
-You can always buy a machine second hand...no Rx needed.

Keep up the recording and let us know how it goes.
05-13-2015 01:59 PM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
DocWils Offline

Members-b

Posts: 1,271
Joined: Jul 2012

Machine: Philips Remstar series 60
Mask Type: Nasal pillows
Mask Make & Model: ResMed P10
Humidifier: same as machine
CPAP Pressure: 5-15
CPAP Software: SleepyHead

Other Comments:

Sex: Male
Location: Switzerland

Post: #6
RE: Interpreting Oximeter results
This is a rather small sampling to get a good look - just a bit over 40-odd minutes, and the O2 desaturations don't correspond with a sudden rise in heart rate, so it could also be noise generated by a shift of the fingerling. And that is the problem - using a pulse oximeter alone to self diagnose sleep apnoea is a dangerous game, fraught with problems - yes, these could be desats, but the event at 6:37 could be noise, for instance, as could the 6:17 event. Or not. There is not enough to go on here, and the sampling is to small. By all means take this in to your doc to support your argument, but you would need a full night report and print-out, not base it on that short section. In addition, normal people also desat from time to time per night, the problem is when you do it too often, and for which reason. And that is where we enter SA territory.
05-13-2015 03:38 PM
Find all posts by this user Post Reply Quote this message in a reply
Mark Douglas Offline

Advisory Members

Posts: 513
Joined: Apr 2015

Machine: Sys 1 (60) RemStar BiPAP Auto with Bi-Flex 760P Auto Bi-Level (Variabl
Mask Type: Nasal mask
Mask Make & Model: PR Wisp
Humidifier: PR Sys One heated
CPAP Pressure: RiseTime 3 Fxd E-9.0 / I-11.5
CPAP Software: SleepyHead EncoreBasic

Other Comments: Hashimoto's thyroiditis.

Sex: Male
Location: SW Ohio

Post: #7
RE: Interpreting Oximeter results
You can also do a home study for a couple hundred dollars and while not as detailed as a full blown study certainly more info than you have now.

I use my PAP machine nightly and I feel great!
Updated: Philips Respironics System One (60 Series)
RemStar BiPAP Auto with Bi-FlexModel 760P -
Rise Time x3 Fixed Bi-Level EPAP 9.0 IPAP 11.5 (cmH2O)
05-13-2015 06:58 PM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
PaulaO2 Offline
Wiki Editor
Moderators

Posts: 8,065
Joined: Feb 2012

Machine: S9 Autoset
Mask Type: Full face mask
Mask Make & Model: F&P Simplus
Humidifier: H5i
CPAP Pressure: 14-20
CPAP Software: SleepyHead

Other Comments: Ehlers-Danlos Syndrome, Hypermobility Type; chronic sarcasm

Sex: Undisclosed
Location: western NC, USA

Post: #8
RE: Interpreting Oximeter results
Any doctor can write the prescription for a CPAP, it does not have to be a sleep doctor. If you have a good relationship with your GP, just talk to him/her about what you are thinking and that you'd like to buy one out of pocket from a reputable online supplier (vs one on the "black market") but you need a prescription. Talk about how you can show him/her the data.

PaulaO2
Apnea Board Moderator
www.ApneaBoard.com


Breathe deeply and count to zen.

INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
05-13-2015 09:03 PM
Find all posts by this user Post Reply Quote this message in a reply
Sn00zeAlarm Offline

Preferred Members

Posts: 72
Joined: May 2015

Machine: Resmed A10 autoset
Mask Type: Nasal pillows
Mask Make & Model: Resmed P10
Humidifier: Builtin
CPAP Pressure: 5-7
CPAP Software: SleepyHead

Other Comments: Heated hose

Sex: Male
Location: Florida US

Post: #9
RE: Interpreting Oximeter results
After 4 days of collecting data:
Avg SpO2 93.87%, Avg pulse 59
Min SpO2 76%, Min pulse 48, Max pulse 93
SpO2 Drop Index 6.6 (not sure what this is)
% Time in drop 5.65%

Desaturation events per night between 8 and 107, average per night 45.
Most noticeable low SpO2 swings seem to correleate with REM sleep
(This post was last modified: 05-16-2015 05:13 PM by Sn00zeAlarm.)
05-16-2015 05:06 PM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
krelvin Offline

Advisory Members

Posts: 155
Joined: Jul 2014

Machine: Resmed S9 VPAP Auto BiLevel
Mask Type: Full face mask
Mask Make & Model: Quattro Air
Humidifier: S9 Series H5i Heated Humidifier with Climate Control
CPAP Pressure: 10.6cm - 18cm - PS 4cm
CPAP Software: ResScan SleepyHead

Other Comments: FlashAir WiFi SDcard with SleepMaster/FlashPAP - Weather Nut

Sex: Male
Location: Mesa AZ

Post: #10
RE: Interpreting Oximeter results
(05-16-2015 05:06 PM)Sn00zeAlarm Wrote:  ...
Most noticeable low SpO2 swings seem to correleate with REM sleep
I'm curious... if you don't have a way to measure REM sleep, how would you be able to make that correlation?

With a CPAP looking at the data over time you might be able to generally infer when you might be having REM sleep, but without something to monitor the Brain waves, you really don't know for sure and I don't think you can do that reliably with an Oximeter.

Way back when I had my first sleep study, they found in the 3+ hours I was getting 0 REM sleep none. Wouldn't have actually known that if I had not been hooked up.

Current Settings PS 4.0 over 10.6-18.0 (cmH2O) BiLevel Auto
TNET Sleep Resource Pages
CPAP Machine Database
05-16-2015 06:29 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
  Sleep latency -study results Dagmar 1 60 Yesterday 10:04 PM
Last Post: chill
  [Diagnosis] Waiting for sleep study results...got Pulse Ox in the meanwhile jds2001 10 300 12-01-2016 03:13 AM
Last Post: kwhenrykerr
Question First Machine, First Night, First results..Help please? SJGino 9 394 11-18-2016 11:55 PM
Last Post: SJGino
  [Equipment] CMS 50F PLUS OLED Wrist Color Pulse Oximeter with Innovo┬« SnugFit probe Ham Radio 5 391 11-15-2016 05:03 PM
Last Post: JuicyJuices
  Oximeter Normal Graph shermantank45 14 594 11-03-2016 06:00 PM
Last Post: kwhenrykerr
  Results Intrepretation GrahamSA 5 350 10-26-2016 08:52 AM
Last Post: Beej
  newbie questions re sleep test results Frances 4 332 10-20-2016 08:21 AM
Last Post: cate1898

Forum Jump:

Who's Online (Complete List)