Diagnosing data - Printable Version +- Apnea Board Forum - CPAP | Sleep Apnea (https://www.apneaboard.com/forums) +-- Forum: Public Area (https://www.apneaboard.com/forums/Forum-Public-Area) +--- Forum: Main Apnea Board Forum (https://www.apneaboard.com/forums/Forum-Main-Apnea-Board-Forum) +--- Thread: Diagnosing data (/Thread-Diagnosing-data)

Diagnosing data - jcw1407 - 06-23-2023 Hi all I'm some weeks into this journey,and I can definitely see some improvements, but they are patchy, and I'm still having trouble trying to fix leaks, but I'm trying to get a better handle on the stats that get reported to me. My main problem is trying to understand the flow rate chart, especially when I zoom in.  That chart image doesn't seem to show any normal breathing :-) The zoomed out picture looks horrible to me, but even after reading all the wiki articles, and many of the posts in here, I'm not sure what normal should even look like. Sorry this is such a rambling post Cheers James RE: Diagnosing data - Crimson Nape - 06-23-2023 Hi jcw1407!  -   You are missing the valuable data on the Daily screen's left side.  Please follow the steps I have listed below. If you have changed the Daily display, make sure to reset it to the Standard view.  (View > Reset Graphs > Standard)  Do not pin all your charts. The charts are displayed in order of importance. Please do not re-arrange them for screenshots. Make sure you are at the top of the Daily screen and have not scrolled down.  Also, make sure you are displaying the complete day's data, and not zoomed in to any specific time range. (Take a guess as to why we mention all this. . .) To take a screenshot of your Daily screen, select one of the following: For Windows or Linux: Use the F12 key For a Mac: Use the Fn+F12  key combination.  If additional help is needed, follow the steps here to post an image: https://www.apneaboard.com/forums/Thread-How-to-Attachments   (I think you have this one covered...) - Red RE: Diagnosing data - jcw1407 - 06-23-2023 Hi Red Thanks, I've included a standard attachment. My question still remains though, when I zoom into a Hypopnea event, what even is the flow rate showing me.  I can't make head nor tail of the curve shape, and the page on the Oscar diagnostics wiki doesn't help me much either. Thanks muchly. James RE: Diagnosing data - Crimson Nape - 06-24-2023 I believe on a Resmed a hypopnea is a reduction of your calculated flow rate >=50%.  How Resmed calculates the normal flow rate is a mystery of the universe.  EPAP pressure controls hypopneas and OAs.  Typically, these events are caused by your EPAP pressure being too low.  Chin tucking can hypopneas too. If you haven't read this Wiki article on flow limitation, it might provide some enlightenment.  Here is the link: https://www.apneaboard.com/wiki/index.php/Flow_limitation I hope this may help. - Red RE: Diagnosing data - Gideon - 06-24-2023 Welcome to the forum.in the zoomed segment you start with heavily flow limited breathing that shifts to good solid breathing, them back to very heavy flow limited breathing causing your flagged hypopneas, then to a section of mixed normal and flow limited breathing ending inore heavily flow limited breathing. Set your min pressure to 7 and EPR=3 then repost and let us see what is going on. I suspect that much of flow limitations is positional apnea commonly caused by head tucking. Read the wiki on soft cervical collars but realize thatost of your obstructive events are flow limits. RE: Diagnosing data - jcw1407 - 06-24-2023 Thanks everyone Changed my settings as suggested, and anecdotally had a better night.  MyAir agrees it was better with AHI of 0.2, but I stupidly forgot to put the SD card back in to the machine.  So I'll get readings tonight. I've also ordered a cervical collar, but am a little worried I'm not going to find one large enough, I have a 19" neck, I'm desperately hoping getting better sleep gives me the energy to actually start doing some exercise. Cheers James RE: Diagnosing data - jcw1407 - 06-25-2023 Reposting latest data, as requested. RE: Diagnosing data - Melman - 06-25-2023 OTC collars listed on amazon come in a variety of neck sizes up to 24"