Anaesthesia Coffee Break

In this episode we talk about this very common phenomenon in anaesthesia, the difference between ETCO2 and PaCO2.
Essentially this all comes down to patient and equipment factors.
BUT the essential element that makes the largest difference is DEAD SPACE.
we discuss the factors effecting it, and the Bohr equation that measures dead space.
Please support us on our Patreon
https://www.patreon.com/anaesthesia
All proceeds will go to Fund a Fellow to help train anaesthetists in developing countries whilst acknowledging the work it takes to keep creating this educational resource.
If you enjoyed this content please like and subscribe
Please post any comments or questions below.
Check out www.anaesthesiacollective.com and sign up to the ABCs of Anaesthesia facebook group for other content.
Any questions please email [email protected]
Disclaimer:
The information contained in this video/audio/graphic is for medical practitioner education only. It is not and will not be relevant for the general public.
Where applicable patients have given written informed consent to the use of their images in video/photography and aware that it will be published online and visible by medical practitioners and the general public.
This contains general information about medical conditions and treatments. The information is not advice and should not be treated as such.
The medical information is provided “as is” without any representations or warranties, express or implied.
The presenter makes no representations or warranties in relation to the medical information on this video.
You must not rely on the information as an alternative to assessing and managing your patient with your treating team and consultant.
You should seek your own advice from your medical practitioner in relation to any of the topics discussed in this episode’
Medical information can change rapidly, and the author/s make all reasonable attempts to provide accurate information at the time of filming. There is no guarantee that the information will be accurate at the time of viewing
The information provided is within the scope of a specialist anaesthetist (FANZCA) working in Australia.
The information presented here does not represent the views of any hospital or ANZCA.
These videos are solely for training and education of medical practitioners, and are not an advertisement. They were not sponsored and offer no discounts, gifts or other inducements.
This disclaimer was created based on a Contractology template available at http://www.contractology.com.

Thanks for covering the dreaded statistics objectives for the exam!
The diagrams and info are from these articles.
Aust Prescr 2003;26:111–3
Moving beyond sensitivity and speci!city: using likelihood ratios to help interpret diagnostic test
and
Critical Care 2004 8:508-512
Statistics review 13: Receiver operating characteristic curves
Please support us on our Patreon
https://www.patreon.com/anaesthesia
All proceeds will go to Fund a Fellow to help train anaesthetists in developing countries whilst acknowledging the work it takes to keep creating this educational resource.
If you enjoyed this content please like and subscribe
Please post any comments or questions below.
Check out www.anaesthesiacollective.com and sign up to the ABCs of Anaesthesia facebook group for other content.
Any questions please email [email protected]
Disclaimer:
The information contained in this video/audio/graphic is for medical practitioner education only. It is not and will not be relevant for the general public.
Where applicable patients have given written informed consent to the use of their images in video/photography and aware that it will be published online and visible by medical practitioners and the general public.
This contains general information about medical conditions and treatments. The information is not advice and should not be treated as such.
The medical information is provided “as is” without any representations or warranties, express or implied.
The presenter makes no representations or warranties in relation to the medical information on this video.
You must not rely on the information as an alternative to assessing and managing your patient with your treating team and consultant.
You should seek your own advice from your medical practitioner in relation to any of the topics discussed in this episode’
Medical information can change rapidly, and the author/s make all reasonable attempts to provide accurate information at the time of filming. There is no guarantee that the information will be accurate at the time of viewing
The information provided is within the scope of a specialist anaesthetist (FANZCA) working in Australia.
The information presented here does not represent the views of any hospital or ANZCA.
These videos are solely for training and education of medical practitioners, and are not an advertisement. They were not sponsored and offer no discounts, gifts or other inducements.
This disclaimer was created based on a Contractology template available at http://www.contractology.com.

In this episode we delve into gravitational effects on the lung including ventilation aspects, pO2, pCO2, VQ matching and its effects and Wests Zones.
The diagrams are from Respiratory Physiology by John B West.
Please support us on our Patreon
https://www.patreon.com/anaesthesia
All proceeds will go to Fund a Fellow to help train anaesthetists in developing countries whilst acknowledging the work it takes to keep creating this educational resource.
If you enjoyed this content please like and subscribe
Please post any comments or questions below.
Check out www.anaesthesiacollective.com and sign up to the ABCs of Anaesthesia facebook group for other content.
Any questions please email [email protected]
Disclaimer:
The information contained in this video/audio/graphic is for medical practitioner education only. It is not and will not be relevant for the general public.
Where applicable patients have given written informed consent to the use of their images in video/photography and aware that it will be published online and visible by medical practitioners and the general public.
This contains general information about medical conditions and treatments. The information is not advice and should not be treated as such.
The medical information is provided “as is” without any representations or warranties, express or implied.
The presenter makes no representations or warranties in relation to the medical information on this video.
You must not rely on the information as an alternative to assessing and managing your patient with your treating team and consultant.
You should seek your own advice from your medical practitioner in relation to any of the topics discussed in this episode’
Medical information can change rapidly, and the author/s make all reasonable attempts to provide accurate information at the time of filming. There is no guarantee that the information will be accurate at the time of viewing
The information provided is within the scope of a specialist anaesthetist (FANZCA) working in Australia.
The information presented here does not represent the views of any hospital or ANZCA.
These videos are solely for training and education of medical practitioners, and are not an advertisement. They were not sponsored and offer no discounts, gifts or other inducements.
This disclaimer was created based on a Contractology template available at http://www.contractology.com.

This episode is all about venous admixture for the part 1 exam.
Check out more info at this great site.
https://derangedphysiology.com/main/cicm-primary-exam/required-reading/respiratory-system/Chapter%20081/concepts-venous-admixture-and-shunt
Please support us on our Patreon
https://www.patreon.com/anaesthesia
All proceeds will go to Fund a Fellow to help train anaesthetists in developing countries whilst acknowledging the work it takes to keep creating this educational resource.
If you enjoyed this content please like and subscribe
Please post any comments or questions below.
Check out www.anaesthesiacollective.com and sign up to the ABCs of Anaesthesia facebook group for other content.
Any questions please email [email protected]
Disclaimer:
The information contained in this video/audio/graphic is for medical practitioner education only. It is not and will not be relevant for the general public.
Where applicable patients have given written informed consent to the use of their images in video/photography and aware that it will be published online and visible by medical practitioners and the general public.
This contains general information about medical conditions and treatments. The information is not advice and should not be treated as such.
The medical information is provided “as is” without any representations or warranties, express or implied.
The presenter makes no representations or warranties in relation to the medical information on this video.
You must not rely on the information as an alternative to assessing and managing your patient with your treating team and consultant.
You should seek your own advice from your medical practitioner in relation to any of the topics discussed in this episode’
Medical information can change rapidly, and the author/s make all reasonable attempts to provide accurate information at the time of filming. There is no guarantee that the information will be accurate at the time of viewing
The information provided is within the scope of a specialist anaesthetist (FANZCA) working in Australia.
The information presented here does not represent the views of any hospital or ANZCA.
These videos are solely for training and education of medical practitioners, and are not an advertisement. They were not sponsored and offer no discounts, gifts or other inducements.
This disclaimer was created based on a Contractology template available at http://www.contractology.com.

Check out the video in this playlist
https://www.youtube.com/playlist?list=PLKoga8GNPk1UhBxHerriOCrJL4XtABcAz
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Podcast: ABCs of Anaesthesia
Primary Exam Podcast: Anaesthesia Coffee Break
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Please support me at my patreon
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Any questions please email [email protected]
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Disclaimer:
The information contained in this video/audio/graphic is for medical practitioner education only. It is not and will not be relevant for the general public.
Where applicable patients have given written informed consent to the use of their images in video/photography and aware that it will be published online and visible by medical practitioners and the general public.
This contains general information about medical conditions and treatments. The information is not advice and should not be treated as such.
The medical information is provided “as is” without any representations or warranties, express or implied.
The presenter makes no representations or warranties in relation to the medical information on this video.
You must not rely on the information as an alternative to assessing and managing your patient with your treating team and consultant.
You should seek your own advice from your medical practitioner in relation to any of the topics discussed in this episode’
Medical information can change rapidly, and the author/s make all reasonable attempts to provide accurate information at the time of filming. There is no guarantee that the information will be accurate at the time of viewing
The information provided is within the scope of a specialist anaesthetist (FANZCA) working in Australia.
The information presented here does not represent the views of any hospital or ANZCA.
These videos are solely for training and education of medical practitioners, and are not an advertisement. They were not sponsored and offer no discounts, gifts or other inducements.
This disclaimer was created based on a Contractology template available at http://www.contractology.com.