How low can oxygen level get before it is fatal?

This area is for Sleep Apnea questions and general Sleep Apnea Discussions.


How low can oxygen level get before it is fatal?

Postby merywidow » Wed Feb 21, 2007 7:10 pm

My pulmonologist recommended an oxomiter overnight much to my objection. I had 3 good hours of sleep and it had registered 4 low oxygen levels of around 27%. He said this was a concern so is setting me up for a sleep study. How long do you think I was not breathing for it to get that low and is it dangerous?
merywidow
 

Postby CrohnieToo » Wed Feb 21, 2007 7:38 pm

Anything below 88% oxygen saturation is dangerous and debilitating to your entire body.

The length of time one is desaturated below 88% is vital as well. Obviously a few seconds here and there is not so worrisome as minutes often.

Why on earth would you object to an overnight oximetry? It is such an easy thing and no real bother at all!

Your pulmo is EXACTLY right in ordering a sleep study! Do be sure to comply and go thru w/it. Meanwhile, you might want to ask your pulmo for a copy of that overnight oximetry report to see for yourself how often and how long your 02 saturation was less than 88%. And actually, anything below 90% is worrisome. Again, depending on for how long and how often. The report will most likely even tell you what % of your sleep time was spent w/02 saturation below 88%.
ResScan 3.10 - Resmed S8 ResLink & oximeter
ConTec CMS-50D+ oximeter - Philips EverFlo 5L Oxygen Concentrator
PR SystemOne BPAP Auto w/Bi-Flex & Humidifier - EncorePro 2.2.14.0
User avatar
CrohnieToo
 
Posts: 7943
Joined: Mon Mar 20, 2006 9:18 pm
Location: Mid-Michigan
Machine: Resmed S8 VPAP Auto
Mask: Resmed Quattro FX Small
Humidifier: Resmed H3i
Year Diagnosed: 2006

Postby LoriPA » Wed Feb 21, 2007 8:00 pm

Another thing to consider is the brain can only survive four minutes once oxygen is completely cut off. I would definitely follow the pulminologist's advice.
Image
Scratching away the apnea!
User avatar
LoriPA
 
Posts: 245
Joined: Sat Dec 30, 2006 11:45 pm
Location: Pittsburgh, PA

Postby Daniel » Wed Feb 21, 2007 8:50 pm

CrohnieToo wrote:Anything below 88% oxygen saturation is dangerous and debilitating to your entire body.

The length of time one is desaturated below 88% is vital as well. Obviously a few seconds here and there is not so worrisome as minutes often.

Why on earth would you object to an overnight oximetry? It is such an easy thing and no real bother at all!

Your pulmo is EXACTLY right in ordering a sleep study! Do be sure to comply and go thru w/it. Meanwhile, you might want to ask your pulmo for a copy of that overnight oximetry report to see for yourself how often and how long your 02 saturation was less than 88%. And actually, anything below 90% is worrisome. Again, depending on for how long and how often. The report will most likely even tell you what % of your sleep time was spent w/02 saturation below 88%.


Just to reinforce the above.

In a hospital environment, blood oxygen saturation levels below 95% cause concern................below 90% require intervention.

Follow up with the sleep study ASAP. Continued drops in O2 levels can (and will) cause damage to cognitive function, short term memory and a host of other problems.

Daniel.
The untreated Sleep Apnoea sufferer died quietly in his sleep..
Unlike his three passengers who died screaming !


The first 40 years of childhood are by far the hardest
Daniel
 
Posts: 6013
Joined: Sat Jun 25, 2005 5:49 am
Location: Ireland
Machine: Philips Respironics System One Auto
Mask: ResMed Micro Nasal Mask
Humidifier: No
Year Diagnosed: 1993

Postby svenodyo » Wed Feb 21, 2007 9:50 pm

i had oxy desaturations to 82 percent, at that point i would go into "atrial fibrillation", witch would bring me out of a deep sleep, if you want to call it that.i'amhaving hyponia events of 10 episodes per hour, not that bad my pulmonologist said, but obviously enough to cause heart issues, so yeah go get checked out :lol:
svenodyo
 
Posts: 3
Joined: Wed Feb 21, 2007 9:36 pm

now you have me worried.

Postby merywidow » Wed Feb 21, 2007 11:35 pm

Thanks for the info. I am going to get the sleep study. What worries me is that my resting sats are 88% I was noticing that as I watched Oprah before I fell asleep that night. I have asthma so maybe it's ok to be lower. I also live in high altitude 7000 feet so maybe that makes a difference. What do you think? I just have a hard time believing I have any problem. I usually go to sleep in about 15 minutes and sleep soundly for 6 or 7 hours and feel fine the next day. No syptoms. Maybe the oxometry machine malfunctioned. Maybe I am in denial. LOL
merywidow
 

Re: now you have me worried.

Postby Daniel » Thu Feb 22, 2007 5:06 am

merywidow wrote:Thanks for the info. I am going to get the sleep study. What worries me is that my resting sats are 88% I was noticing that as I watched Oprah before I fell asleep that night. I have asthma so maybe it's ok to be lower. I also live in high altitude 7000 feet so maybe that makes a difference. What do you think? I just have a hard time believing I have any problem. I usually go to sleep in about 15 minutes and sleep soundly for 6 or 7 hours and feel fine the next day. No syptoms. Maybe the oxometry machine malfunctioned. Maybe I am in denial. LOL


Do you have other respiratory conditions ?

Daniel.
The untreated Sleep Apnoea sufferer died quietly in his sleep..
Unlike his three passengers who died screaming !


The first 40 years of childhood are by far the hardest
Daniel
 
Posts: 6013
Joined: Sat Jun 25, 2005 5:49 am
Location: Ireland
Machine: Philips Respironics System One Auto
Mask: ResMed Micro Nasal Mask
Humidifier: No
Year Diagnosed: 1993

Postby CrohnieToo » Thu Feb 22, 2007 11:44 am

Sounds like in addition to the need for the sleep study your asthma needs to be better treated and controlled. Certain altitudes can make a difference but sleep labs and most xPAP machines make adjustments for that so I doubt the altitude where you are living are entering into the equatiion.

To keep a better eye on your asthma you might consider purchasing a finger pulse oximeter. You can get a good Nonin Onyx for about $200 now if you shop around online for one. It is not a recording oximeter as is used during an overnight oximetry or sleep study. Its value lies in checking your 02 sats during the day at a time you are active or feeling SOB or feel like your heart is racing. Its just a "spot checker" you might say. Certainly if you've been sitting, resting, reading a book for 5 minutes or more and check your 02 sats w/a Nonin and your sats are below 90% (maybe 95% as Daniel said?) your asthma is NOT under control. Or you may have emphysema or COPD in addition.
ResScan 3.10 - Resmed S8 ResLink & oximeter
ConTec CMS-50D+ oximeter - Philips EverFlo 5L Oxygen Concentrator
PR SystemOne BPAP Auto w/Bi-Flex & Humidifier - EncorePro 2.2.14.0
User avatar
CrohnieToo
 
Posts: 7943
Joined: Mon Mar 20, 2006 9:18 pm
Location: Mid-Michigan
Machine: Resmed S8 VPAP Auto
Mask: Resmed Quattro FX Small
Humidifier: Resmed H3i
Year Diagnosed: 2006

Postby hhopper » Thu Feb 22, 2007 8:07 pm


When I was at the doctors office the other day, my O² sat was 100%. The doctor didn't believe it, so he reset the machine and tested his own O² sat. It wa 97%. Then he checked mine again, it was still 100%.
Image

Acronyms and Often Used Forum Phrases
Respironics? M-Series Auto w/ HH & C-Flex; Flexfit? Hybrid? Mask, Encore Pro 1.8i
User avatar
hhopper
 
Posts: 1275
Joined: Wed Nov 22, 2006 1:34 pm
Location: Tarpon Springs, FL

none

Postby merywidow » Thu Feb 22, 2007 9:08 pm

Daniel, I do not have any other symptoms. I feel fine so that's why I was so surprised. I just had my asthma checked with all the tests and he said it was fine. In his office my O2 was 91. I have never needed an inhaler either. It does act up more when alergy season strikes. I did almost die about 7 years ago and a cat scan said I have lost about 26% of my lung capacity with scar tissue. Maybe that's why the resting O2 is so low. I will check into getting the oxygen meter. Thanks for all the help. I'd still like to know how long it takes to get my oxgen level down to 27%. Is it several minutes? I can't hold my breath that long.
merywidow
 

Postby CrohnieToo » Thu Feb 22, 2007 9:22 pm

91% is NOT a good resting level 02 saturation. That lost lung capacity spells out the reason for it tho. Your sats can drop quickly and at varying rates so there really is no way to predict how long it took/takes for your sats to drop that low.

How in the devil can you have allergies, asthma and reduced lung capacity and NOT need an inhaler? WHO says you don't need an inhaler? Either you need to better educate yourself or you need a new and better pulmonologist.

Be sure to get a copy of the full results of your sleep study. The graphs, sleep positions, etc. etc. You might better realize then just how serious a situation you could be in.
ResScan 3.10 - Resmed S8 ResLink & oximeter
ConTec CMS-50D+ oximeter - Philips EverFlo 5L Oxygen Concentrator
PR SystemOne BPAP Auto w/Bi-Flex & Humidifier - EncorePro 2.2.14.0
User avatar
CrohnieToo
 
Posts: 7943
Joined: Mon Mar 20, 2006 9:18 pm
Location: Mid-Michigan
Machine: Resmed S8 VPAP Auto
Mask: Resmed Quattro FX Small
Humidifier: Resmed H3i
Year Diagnosed: 2006

Postby Andora » Fri Feb 23, 2007 1:58 pm

I have OSA and COPD (Chronic Obstructive Pulmonary Disorder). As a result of the COPD I'm on oxygen 24/7. When I sleep I just bleed the 02 through the c-pap. I wanted to state this before saying that a resting o2 sat of 88%-91% is NOT normal. It sounds like your asthma may be masking another Pulmonary problem. You need to ask your pulmonologist order a full PFT (Pulmonary Function Test). Also request an ABG (Arterial Blood Gas). Please do this quickly.

A good place to read about COPD is at http://www.copd-international.com
Andora
 
Posts: 5
Joined: Sat Sep 02, 2006 12:06 pm
Location: FL

Postby CrohnieToo » Fri Feb 23, 2007 5:20 pm

You are soooooo right, Andora!! You referred to a good URL! The EFFORTS organization has an EXCELLENT free subscription mailing list w/some good RTs who will answer questions. I don't have the URL at hand but a google search should find it. MerryWidow I suggest you visit EFFORTS and ask some of your questions there as well.

Be sure to light a match under your PCP's or pulmo's fanny and get the PFT and ABG! Either one can order them. For that matter a sleep pulmo can order them. Good luck and God bless!
ResScan 3.10 - Resmed S8 ResLink & oximeter
ConTec CMS-50D+ oximeter - Philips EverFlo 5L Oxygen Concentrator
PR SystemOne BPAP Auto w/Bi-Flex & Humidifier - EncorePro 2.2.14.0
User avatar
CrohnieToo
 
Posts: 7943
Joined: Mon Mar 20, 2006 9:18 pm
Location: Mid-Michigan
Machine: Resmed S8 VPAP Auto
Mask: Resmed Quattro FX Small
Humidifier: Resmed H3i
Year Diagnosed: 2006

I did

Postby merywidow » Mon Feb 26, 2007 9:43 am

Thanks for your comments. I should say that I had a pulmonologist that said I didn't need an inhaler because I only had mild asthma due to alergies. (diagnosed 2 years ago.) He went out of business so just 2 weeks ago I started with one who has a great reputation and asked loads of questions. He has ordered an inhaler for me. He spent an HOUR with me. He is the one who pushed the sleep study. He did all the testing, pulmonary function, blood gasses, etc. and also said my asthma was mild. He ruled out COPD and Emphasema as I do not have syptoms. I am symtom free for 3 months out of the year so I am doing all I can do doctor wise. I have since found out that 90 sats in this altitude is not unusual. I also notice that when I go down the hill to Phoenix or Tucson, I can breath better and have more energy. Maybe a move is in my near future. LOL Thanks for all the suggestions. It helps.
merywidow
 

Postby CrohnieToo » Mon Feb 26, 2007 11:15 am

You might find the following article of interest:

A shift from central and mixed sleep apnea to obstructive sleep apnea resulting from low-flow oxygen.

http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=4026046&dopt=Abstract
ResScan 3.10 - Resmed S8 ResLink & oximeter
ConTec CMS-50D+ oximeter - Philips EverFlo 5L Oxygen Concentrator
PR SystemOne BPAP Auto w/Bi-Flex & Humidifier - EncorePro 2.2.14.0
User avatar
CrohnieToo
 
Posts: 7943
Joined: Mon Mar 20, 2006 9:18 pm
Location: Mid-Michigan
Machine: Resmed S8 VPAP Auto
Mask: Resmed Quattro FX Small
Humidifier: Resmed H3i
Year Diagnosed: 2006

Next


  • Site Supporter

  • Similar topics
    Replies
    Views
    Author

Return to SLEEP APNEA HELP!

Who is online

Users browsing this forum: fmsezqaud, gjeebfyg, gjekvrmc, gjgufcyj, gjhjkjsd, gjhyapea, gjipljnn, gjitfgvc, gjklhatx, gjkvrirf, gjljapgi, gjmlyuzx, gjnqshos, gjozzypg, gjqvfobx, gjskbrjt, gjtogfym, gjwndtut, gjybrjoj, gjybylya, gtqgjfbjv, gyngnukre, narhpdfof, okyuekzoo, otqcpwfja, pletcherhrn, qkiyudoih, rmovhhteh, Swalalptads, tlsvdyhoi, tyqjirudb, uqnqgymrc, wibfcdjri, wospywplg, xihepdvbu, xpelangua, ywozkvsoa, zdpemoifg and 4 guests