Respiratory Therapy - A-a Gradient, a/A ratio, how they apply and why it matters?

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Understanding that arterial oxygenation depends on the efficacy of the alveoli explains alot. Why does A-a gradient increase when breathing 100% oxygen? Is this a bad thing? Let me know what you think at the conclusion of the video! Thanks for watching!!!
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Опубликовано:

30 авг 2020

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Комментарии : 38

@hardnoodle 3 года назад

Coming up on my 1 year mark as a respiratory therapist. These videos are still helpful even to a Registered RT. Never stop learning!

@RespiratoryCoach 3 года назад

NEVER....EVER...you'll be amazed at how much you can continually learn for the sake of improving your patient care and outcomes!!!

@sumbulkamal9950 3 года назад

I am respiratory therapist in Pakistan i need your help and your all vedio and some type of presentation which help me in my job if you send me through my email

@danieltomblin9642 4 месяца назад

Thank you for posting from a CRNA student!

@christinesullivan5195 3 года назад

This was a great video! I've always been good with my equations, but I never really grasped the complete concept of the A-a gradient and the a/A ratio. You explained this so well and I understand it so much better. Thank you!!

@silk.spectre6606 3 года назад

I love this SO MUCH! Thank you! I also had an issue understanding the difference between using A-a gradient vs a-A ratio. I used many different examples, and now I can see how the a-A ratio also helps to understand that when someone overall hypoventilates, they can still transfer 90% of oxygen, which eliminates a diffusion problem, making it a true ventilation problem. Sometimes A-a gradients are abnormal, but the a-A ratios are great. Wow, this video really helped me unravel so much more! I appreciate your help!

@JustinJayBeats 3 года назад

Hey sir. Just wanted to let u know that your channel is the best. I learned a lot from you videos that really helped me in my clinicals. Gave me that edge with all the extra knowledge. You made a video about my question a year back about aprv. I haven't had a chance to reach back because I've been busy working after graduation. I'm happy to see your channel grown to 20k subs...def well deserved and I knew your channel would blow up. I hope you keep putting out more content, because even now I'm in the field in an acute setting, I'm still learning from your videos!

@RespiratoryCoach 3 года назад

You're awesome, Justin. So glad to hear you are out and working post graduation. Thank you for the continued support!!! Never forget.. AVERAGE IS EASY!!

@eman5669 Год назад

Thank you Coach for wonderful explanation ,

@jordanlee9607 3 года назад

I'm currently at the point of my RT program where it's extremely overwhelming but can I just say how extremely helpful your videos are for a refresher and understanding better?! I can't thank you enough for this content and can't even express how happy I am I found your page! Quick question for a reminder: When the a/A ratio is less than 75% what does that indicate?

@acaprig27 3 года назад

Thank you so much for these videos!

@RespiratoryCoach 3 года назад

You are very welcome! Thank you for watching!

@shahadahmed22 3 года назад

God bless you, I am an RT and I don’t even need to watch this video but I just love how you teach respiratory and make it clear

@RespiratoryCoach 3 года назад

Awesome! Thank you so much for watching and kindly commenting!!

@kimms8610 3 года назад

Hi Coach...great video, clear and helpful as always. 😊

@RespiratoryCoach 3 года назад

Hi Kim!!! Thanks again for watching and commenting!! Glad it made sense.

@sumbulkamal9950 3 года назад

@@RespiratoryCoach nice vedio thank you

@zeeshandesai8299 3 года назад

great teaching!!👏 a request: could you please do a COMPARISON (and expln) on HYBRID/DUAL MODES and their differences (wrt Trigger/Cycle/Limit)... would be of much help

@RespiratoryCoach 3 года назад

Got it on the list! Thanks for watching and requesting!

@FlightCrit 2 года назад

So good!

@burakozvit7480 2 месяца назад

Thank you Sir ❤

@ahmadal-khouli2723 2 года назад

First of all A huge thanks to you for everything you're learning us If I may ask If I have a covid-19 patient on BiPAP 7/17 with fio2=100% And he's getting better.. Should I make the PEEP lower first? Or the Fio2? And why? Thanks in advance

@redfox3732 2 года назад

how to calculate PA02 on a mechanical ventilator? which pressure do we add to the barometric pressure

@azizbatool1138 3 года назад

can u make video on pressure grandiant

@jellueabigail1706 2 года назад

What would cause a negative A-a gradient?

@jobyjose5526 3 года назад

Hi sir How can i adjust PIP on ventilator and what is the normal ranges? Can anyone help me please.

@RespiratoryCoach 3 года назад

Just replied to your email. Let me know if you have further questions.

@lizl.6874 3 года назад

Hi coach, are the numbers still reliable whether or not some of the alveolis are collapsed, emphysematous or fluid filled where gas exchange is poor? Thanks.

@RespiratoryCoach 3 года назад

Hi Liz. Good to hear from you again. The PAO2 will always be the same depending on what FiO2 is being delivered at what barometric pressure, but the PaO2 will be affected by the scenarios you described. This means that the P(A-a)O2 gradient and a/A ratio will vary with disease processes.

@lizl.6874 3 года назад

@@RespiratoryCoach always been your supporter! Follow up question: did you mean lower O2 concentration will go into the arterial system by different diseases condition? but the numbers still indicates how much O2 diffused into artery? Thanks

@RespiratoryCoach 3 года назад

@@lizl.6874 It breaks down like this. PAO2 is what we put into the alveoli by increasing or decreasing FiO2. Disease processes have little impact on this number, but a big impact on the amount that actually diffuses into arterial blood for systemic circulation. PaO2 indicates how much diffused into the arteries. The A-a gradient and a/A ratio are indicators of oxygen efficiency. How efficient are the alveoli getting oxygen into arterial circulation. So disease processes will impact PaO2, A-a gradient, and a/A ratio, but have very little impact on PAO2. Hope this helps and so thankful for all the support!!

@abdulhikmat6599 3 года назад

Joe you are really good. You need to teach other people who post Respiratory videos how to teach. Some people are just reading from a script, and some other people have very loud mind scratching harsh music in their videos which literally converts their videos into a wild bar. We don't need any stupid music in these educational videos and we learners need the presenter to explain the concept as you do and have a loud enough voice, and talk close to microphone, not just talking in a hallway.