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Tidal Volume Acceptable Range
#1
Question 
Tidal Volume Acceptable Range
Just found another thread that may address my question... will read it and see. Thanks!

http://www.apneaboard.com/forums/Thread-...idal-Volum

"While sleeping, what would be an acceptable range for Tidal Volume? Thank you."
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#2
RE: Tidal Volume Acceptable Range
I think I've read (in the forum) that it should be >400.  What is yours, and how do you feel?

(Just saw your update.  Still hope you'll answer my questions.)
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#3
RE: Tidal Volume Acceptable Range
(06-28-2018, 11:04 PM)ShaunBlake Wrote: I think I've read (in the forum) that it should be >400.  What is yours, and how do you feel?

(Just saw your update.  Still hope you'll answer my questions.)

Last night: med 320 and 95% 400
Good night.
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#4
RE: Tidal Volume Acceptable Range
Tidal volume is based on the patient weight and height.  This number is speculative, basing the values on a healthy person.   Age and life history (e.g.: smoking, residual environmental conditions) will play a part in this calculation as well.   A chart calculator does exist, but I'm unable to find it as of this post.

Here is a basic description on how  to calculate tidal volume:

Calculate the ideal body weight using the Devine Formula. For males, the formula is 50 plus 2.3, times the product of height in inches minus 60. For females, it is 45.5 plus 2.3, times the product of height in inches minus 60. Various other formulas are available, however the Devine formula is the one consistently used in pulmonary research and applications.

Calculate the tidal volume by multiplying 12 ml by the ideal body weight in kg. Keep in mind that this is not a physiologic determination of tidal volume--only an estimation. This formula is for someone who is resting comfortably and in excellent health. For patients with asthma or emphysema, multiply 10 ml by the ideal body weight. Critically ill patients in the intensive care unit have even a lower tidal volume of 8 ml/kg.

Note: Your 95% will be closer to the actual. I would suggest that you look at this value on the Overview screen, above the bar chart, to obtain a multi-day representation.

Good Luck!
Crimson Nape
Apnea Board Moderator
www.ApneaBoard.com
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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.
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#5
RE: Tidal Volume Acceptable Range
(06-29-2018, 09:18 AM)Crimson Nape Wrote: Tidal volume is based on the patient weight and height.  This number is speculative, basing the values on a healthy person.   Age and life history (e.g.: smoking, residual environmental conditions) will play a part in this calculation as well.   A chart calculator does exist, but I'm unable to find it as of this post.

Here is a basic description on how  to calculate tidal volume:

Calculate the ideal body weight using the Devine Formula. For males, the formula is 50 plus 2.3, times the product of height in inches minus 60. For females, it is 45.5 plus 2.3, times the product of height in inches minus 60. Various other formulas are available, however the Devine formula is the one consistently used in pulmonary research and applications.

Calculate the tidal volume by multiplying 12 ml by the ideal body weight in kg. Keep in mind that this is not a physiologic determination of tidal volume--only an estimation. This formula is for someone who is resting comfortably and in excellent health. For patients with asthma or emphysema, multiply 10 ml by the ideal body weight. Critically ill patients in the intensive care unit have even a lower tidal volume of 8 ml/kg.

Note: Your 95% will be closer to the actual.  I would suggest that you look at this value on the Overview screen, above the bar chart,  to obtain a multi-day representation.

Good Luck!

Thanks you, CN. My average 95% Tidal Volume is 440 and if I calculated correctly, the Tidal Volume for a 5'5" female with an ideal weight of 125 lbs. Too-funny would be about 680.
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#6
RE: Tidal Volume Acceptable Range
I would caution you to take the calculated tidal volume with skepticism.  I can't find how these values were determined.  Look at the bright side, your are breathing, hopefully you don't feel short of breath, and you're able to wake up the next day.   Sleep-well
Crimson Nape
Apnea Board Moderator
www.ApneaBoard.com
___________________________________
Useful Links -or- When All Else Fails:
The Guide to Understanding OSCAR
OSCAR Chart Organization
Attaching Images and Files on Apnea Board
Apnea Helpful Tips

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.
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#7
RE: Tidal Volume Acceptable Range
If your 95% tidal volume is 440ml your fine. Your medium tidal volume should be between 340-400ml. This is based on your height and ideal weight. I was using the respiratory rates of 6kg/ml to 7 kg/ml which what is normal for most people.
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#8
RE: Tidal Volume Acceptable Range
(06-29-2018, 07:23 PM)Walla Walla Wrote: If your 95% tidal volume is 440ml your fine. Your medium tidal volume should be between 340-400ml. This is based on your height and ideal weight. I was using the respiratory rates of 6kg/ml to 7 kg/ml which what is normal for most people.

My average medium is 320... so I'm close. Rolleyes
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#9
RE: Tidal Volume Acceptable Range
The numbers I gave are not hard and fast rules. being 20ml off means nothing. It's still normal. Now if it was 200ml I'd be concerned.
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Beginner's Guide to SleepyHead
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Advisory Members serve as an "Advisory Committee" to help shape Apnea Board's rules & policies.

Membership in the Advisory Members group does not imply medical expertise or qualification for advising Sleep Apnea patients concerning their treatment.



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