Respiratory rate question

[hawkwind]

I had something unusual show up on my ReScan report last night. From 3 AM to about 4 AM my respiratory rate was over 40 BPM. My titrated inspiration pressure is 14, expiration is 10.

The respiratory rate numbers for last night were:
Median: 16 95th Percentile: 41 Maximum: 43
% Spontaneous triggered
breaths: 100 % Spontaneous cycled breaths: 98  
 
My AHI was good at 4.1, percent in apnea .4. Is it normal or safe to have your respiratory rate go that high?
I have been on the ResMed machine since January.
Also, even with my AHI in line, I still have very sleepy moments during the day, especially after lunch. Any advice or help appreciated!
Gary

[dsm]

I had something unusual show up on my ReScan report last night. From 3 AM to about 4 AM my respiratory rate was over 40 BPM. My titrated inspiration pressure is 14, expiration is 10.

The respiratory rate numbers for last night were:
Median: 16 95th Percentile: 41 Maximum: 43
% Spontaneous triggered
breaths: 100 % Spontaneous cycled breaths: 98  
 
My AHI was good at 4.1, percent in apnea .4. Is it normal or safe to have your respiratory rate go that high?
I have been on the ResMed machine since January.
Also, even with my AHI in line, I still have very sleepy moments during the day, especially after lunch. Any advice or help appreciated!
Gary

I have had RR up around that a couple of times while experimenting with different epap/ipap gaps.

At that rate it is unquestionably hyperventilation which can be triggered by excessive CO2 build up in the blood (too little CO2 in the blood triggers centrals). It is possible that the vent holes get blocked as we move around & shift the pillow & this can allow CO2 to build up. Below are some of the charts in the 2nd two links 50% of the vent holes were sealed and as can be seen, the max RR is much higher than the normal links - this may cause repeated bouts of hyperventilation which is the body attempting to reduce the CO2 levels in the blood.

They are all on this menu ... http://www.internetage.ws/cpapdata/

NORMAL CHARTS
===============
http://www.internetage.ws/cpapdata/menu_0806.html
http://www.internetage.ws/cpapdata/menu_0807.html


50% of vent holes sealed off (RR tends to go a bit higher)
========================
http://www.internetage.ws/cpapdata/menu_0811.html
http://www.internetage.ws/cpapdata/menu_0813.html

But, here is a straight cpap mode with high max RR
===========================================
http://www.internetage.ws/cpapdata/

In summary, it may be that if the vent holes get blocked as you move around, that CO2 builds up & the RR goes up in reaction to higher CO2 levels.

DSM

[Guest]

Or it could be as simple as "You had a dream"

[dsm]

Or it could be as simple as "You had a dream"

Yup, that too is viable - go into some stages of REM sleep, get chased by a demon or whatever, or the classic running for a train but just can't get to it

So yes, REM sleep can be a trigger for rapid respiration.

DSM

[Ganesha]

Two word explanation for rapid respiration...

Erotic dream!

[hawkwind]

Very interesting, I guess it's possible I could have clogged the vent, I am a side sleeper.
Thanks so much for the replies...
don't remember any erotic dreams though,
sure would have liked to!

[hawkwind]

Thanks dsm, the charts are very revealing. I appreciate you taking the time sending those.
Gary