Quantcast

Bookmark and Share
General Discussion on any topic relating to CPAP and/or Sleep Apnea.
meister
 
Posts: 399
Joined: Fri Jan 21, 2005 11:15 am
Gender: None specified

Who knows CO2 blood levels?

Postby meister on Mon Oct 24, 2005 3:09 pm

In my last blood test, my CO2 was flagged as high at 33 MMOL/L. Anyone
have a similar problem, or know anything about high blood CO2 levels?

barbyann
 
Posts: 62
Joined: Mon May 30, 2005 1:34 pm
Location: Connecticut
Gender: None specified

CO2

Postby barbyann on Mon Oct 24, 2005 5:51 pm

I am assuming this was a venous blood test, right? normal values 23-30 mmol/L

some drugs can cause increased levels. Are you on Aldosterone, barbiturates, bicarbonates, hydrocortisone, diuretics or steroids? If so it may be the cause.

Are you sick? Increased levels may signal the following:
severe diarrhea, starvation, severe vomiting, Aldosteronism, Emphysema, hyperventilation syndrome.

You are obviously retaining CO2 for some reason. More importantly, what did your doctor say?

meister
 
Posts: 399
Joined: Fri Jan 21, 2005 11:15 am
Gender: None specified

Postby meister on Mon Oct 24, 2005 7:52 pm

I am on diuretics. Thanks. Doctor said "I don't like patients
who ask a lot of questions. Just do what I say!" :(

I don't have any of those things which you listed. I just have
severe Central Sleep Apnea. I tend to forget to breathe.

IllinoisRRT
 
Posts: 73
Joined: Mon Nov 29, 2004 10:08 am
Location: central Illinois
Gender: None specified

Postby IllinoisRRT on Mon Oct 24, 2005 7:59 pm

Could you clarify what kind of test this was? An ABG, or VBG? Most commonly results are given in mmHg (millimeters of mercury), and the normal CO2 level is 35-45 mmHg
Christine RRT

User avatar
deltadave
 
Posts: 1000
Joined: Sat Jul 23, 2005 5:10 am
Location: near Newtown, Connecticut
Gender: None specified

Elevated CO2 Levels

Postby deltadave on Tue Oct 25, 2005 5:27 am

My guess in the pool would be contraction alkalosis. Make sure your other electrolyte levels are OK.

My response to the MD would be "I don't like doctors who don't have a lot of answers."

deltadave

Im2tired
 
Posts: 44
Joined: Sat Jun 18, 2005 6:47 pm
Location: Illinois
Gender: Female

Postby Im2tired on Tue Oct 25, 2005 10:29 am

This is good timing since I just got a copy of my blood work and my CO2 was 32 (Lab reference range 22 - 31 MMOL/L) and I was wondering about it. I am on steroids (Prednisone) for rheumatoid arthritis along with other medications for the RA, diabetes, hypothroid and allergies. I get blood drawn every 6 weeks.

If you have sleep apnea isn't it true you don't have as much oxygen and have more CO2? Would it show up in your blood?

I went to an alternative heath care provider before being dx'd with sleep apnea and she hooked wires to my head and said that I had CO2 poisoning at one time. My goal with seeing this person was to have someone give me some advise about supplements to help with my digestive problems and I don't believe there is any medical evidence that the tests that she ran are reliable but I was wondering after the sleep apnea was dx'd if there was a connection with the high CO2. Mainly I was thinking if there was a better way to identify people who could have sleep apnea and should have a sleep study. She also said I suffered from extreme fatigue and lack of relaxation but of course who doesn't these days?
Laurie

User avatar
deltadave
 
Posts: 1000
Joined: Sat Jul 23, 2005 5:10 am
Location: near Newtown, Connecticut
Gender: None specified

CO2 Levels

Postby deltadave on Tue Oct 25, 2005 8:33 pm

The CO2 level you're refering to is the total CO2, composed of the serum bicarbonate (about 95% of the total) and dissolved CO2. So this cannot be necessarily used interchangeably with the pCO2 level, a gas pressure as described above, that is determined either by blood gas or end tidal CO2 measurement.
Total CO2 is used to assess metabolic status, while pCO2 and ETCO2 are used to determine ventilatory status, which is what we're more interested in when we talk about sleep apnea.
The problems of gas exchange in sleep apnea occur only while you sleep, so even if your pCO2 is elevated during the night (and a sign of that could be morning headache) it normalizes during the day, so this wouldn't be a good measure of sleep apnea. Or rather, by the time you were having chronically elevated pCO2 levels, you'd be in a heap o' trouble (like the Pickwickian syndrome). Also as noted above, elevated Total CO2 has a variety of causes, so this is really something you should be reviewing with your physician.
Im2tired, you probably had carbon monoxide poisoning (CO) rather than dioxide (CO2). CO is the one from exhaust fumes, faulty furnaces, etc.
deltadave
Last edited by deltadave on Wed Oct 26, 2005 4:50 am, edited 2 times in total.

barbyann
 
Posts: 62
Joined: Mon May 30, 2005 1:34 pm
Location: Connecticut
Gender: None specified

meister

Postby barbyann on Tue Oct 25, 2005 8:40 pm

Since diuretics have the known side effect of increasing CO2 in blood may I suggest that you speak with your pharmacist about this side effect? He/She may be more willing to explain the cause. They may also be willing to act as a liaison with your doctor. My pharmacist is brilliant and has become my friend and best resource over the past few years.

JustStartedCPAP
 

Re: Who knows CO2 blood levels?

Postby JustStartedCPAP on Tue Aug 25, 2015 2:50 pm

I just started on the CPAP a little over 2 months ago and and I like it except that, since then my CO2 has risen from 27 to 31. And it has so far stayed at that level for 2 months (the period in which I've been using the machine). My first concern in using the CPAP was "How does CO2 escape while breathing?" After doing some research I learned that supposedly[i] the CO2 escapes through some mesh in the front of the mask. I looked and sure enough there's some mesh there, but it still wasn't completely reassuring because it sure feels like there's considerable resistance when I breathe out. I just feel like a lot of my own CO2 is still remaining in the mask and I breathe it back in. Maybe that's it, don't you think? Is it possible that we're all overthinking this: maybe we're all just breathing back in our own CO2 and thereby upping the levels of CO2 in our blood? [/i]

User avatar
Wulfman...
 
Posts: 2560
Joined: Mon Sep 01, 2014 6:41 pm
Location: N.W. Wyoming
Gender: Male

Re: Who knows CO2 blood levels?

Postby Wulfman... on Tue Aug 25, 2015 3:02 pm

JustStartedCPAP wrote:I just started on the CPAP a little over 2 months ago and and I like it except that, since then my CO2 has risen from 27 to 31. And it has so far stayed at that level for 2 months (the period in which I've been using the machine). My first concern in using the CPAP was "How does CO2 escape while breathing?" After doing some research I learned that supposedly[i] the CO2 escapes through some mesh in the front of the mask. I looked and sure enough there's some mesh there, but it still wasn't completely reassuring because it sure feels like there's considerable resistance when I breathe out. I just feel like a lot of my own CO2 is still remaining in the mask and I breathe it back in. Maybe that's it, don't you think? Is it possible that we're all overthinking this: maybe we're all just breathing back in our own CO2 and thereby upping the levels of CO2 in our blood? [/i]


You didn't mention what machine or mask you're using or the pressure and other settings.
If you're using a VERY low pressure with a high exhale relief setting, it may have a slight effect. However, if you're using a pressure above about 6 cm. with no exhale relief, I doubt it.

CO2 is the driving factor that causes us to breathe in the first place.

Your numbers are essentially in normal range.

Here are some links for you to read:

https://www.nlm.nih.gov/medlineplus/enc ... 003469.htm

https://en.wikipedia.org/wiki/Hypercapnia

http://www.webmd.com/a-to-z-guides/bicarbonate?page=2

http://www.livestrong.com/article/14240 ... ide-blood/


Den

.
(4) REMstar Autos w/C-Flex & (6) Pro 2 CPAPs w/C-Flex - Pressure Setting=12 cm (straight CPAP)
"Passover" Humidification - ResMed Ultra Mirage FF - Encore Pro w/Card Reader & MyEncore software - Chiroflow pillow
User since 05/14/05

User avatar
cancun
 
Posts: 190
Joined: Sat Apr 25, 2015 7:28 pm
Location: Martinsburg WV
Gender: Female

Re:

Postby cancun on Tue Aug 25, 2015 4:07 pm

meister wrote:I am on diuretics. Thanks. Doctor said "I don't like patients
who ask a lot of questions. Just do what I say!" :(

I don't have any of those things which you listed. I just have
severe Central Sleep Apnea. I tend to forget to breathe.


First thing I would do is get rid of that doctor. Although I give him credit for admitting he doesn't like his patients asking questions.

_________________
Machine: AirSense™ 10 AutoSet CPAP Machine with HumidAir™ Heated Humidifier
Mask: AirFit™ F10 Full Face Mask with Headgear
Additional Comments: FlexiFit HC431 FFM with Headgear

User avatar
Wulfman...
 
Posts: 2560
Joined: Mon Sep 01, 2014 6:41 pm
Location: N.W. Wyoming
Gender: Male

Re: Re:

Postby Wulfman... on Tue Aug 25, 2015 4:26 pm

cancun wrote:
meister wrote:I am on diuretics. Thanks. Doctor said "I don't like patients
who ask a lot of questions. Just do what I say!" :(

I don't have any of those things which you listed. I just have
severe Central Sleep Apnea. I tend to forget to breathe.


First thing I would do is get rid of that doctor. Although I give him credit for admitting he doesn't like his patients asking questions.


You DO realize that this is a 10-year-old thread resurrected by "JustStartedCPAP", don't you?
But, I agree with your suggestion to dump the doctor. I did that, too.


Den

.
(4) REMstar Autos w/C-Flex & (6) Pro 2 CPAPs w/C-Flex - Pressure Setting=12 cm (straight CPAP)
"Passover" Humidification - ResMed Ultra Mirage FF - Encore Pro w/Card Reader & MyEncore software - Chiroflow pillow
User since 05/14/05

Matt00926
 
Posts: 88
Joined: Sat Apr 25, 2015 9:15 am
Gender: Male

Re: Who knows CO2 blood levels?

Postby Matt00926 on Tue Aug 25, 2015 5:47 pm

Your doctor works for you, not the other way around. If your doctor will not explain your lab results, get another doctor ASAP. You most likely had a venous blood test conducted, if it was an arterial blood gas you would never forget it as it hurts like a mofo.
Equipment

Machine: Respironics Trilogy 100 in AVAPS-AE mode
Mask: F&P Simplus Full-Face Mask
Humidifier: None


Return to CPAP and Sleep Apnea (CLICK HERE TO READ POSTS)

Who is online

Users browsing this forum: Bill44133, CaptainRaven40, Sir NoddinOff and 21 guests