Ventilation Perfusion (VQ) Mismatch Explained Clearly

Рет қаралды 618,919

MedCram - Medical Lectures Explained CLEARLY

11 жыл бұрын

Understand V/Q mismatch (ventilation/perfusion mismatch) with this clear review from Dr. Roger Seheult of www.medcram.com/?Y...
This is video 5 of the five main causes of hypoxemia: VQ Mismatch.
The remaining causes of hypoxemia are explained in other lectures in this series: high altitude, pulmonary diffusion, hypoventilation, and shunting.
Speaker: Roger Seheult, MD
Clinical and Exam Preparation Instructor
Board Certified in Internal Medicine, Pulmonary Disease, Critical Care, and Sleep Medicine.
MedCram: Medical topics explained clearly including: Asthma, COPD, Acute Renal Failure, Mechanical Ventilation, Oxygen Hemoglobin Dissociation Curve, Hypertension, Shock, Diabetic Ketoacidosis (DKA), Medical Acid Base, VQ Mismatch, Hyponatremia, Liver Function Tests, Pulmonary Function Tests (PFTs), Adrenal Gland, ARDS, Respiratory Failure, Shunt, Ventilation Perfusion Ratio, Pulmonary Embolism, Pneumonia Treatment, and many others. New topics are often added weekly- please subscribe to help support MedCram and become notified when new videos have been uploaded.
Subscribe: kzfaq.info_...
Recommended Audience: Health care professionals and medical students: including physicians, nurse practitioners, physician assistants, nurses, respiratory therapists, EMT and paramedics, and many others. Review for USMLE, MCAT, PANCE, NCLEX, NAPLEX, NDBE, RN, RT, MD, DO, PA, NP school and board examinations.
More from MedCram:
Complete Video library: / medcram
Facebook: / medcram
Google+: plus.google.com/u/1/+Medcram
Twitter: / medcramvideos
Produced by Kyle Allred PA-C
Please note: MedCram medical videos, medical lectures, medical illustrations, and medical animations are for medical education and exam preparation purposes, and not intended to replace recommendations by your health care provider.

Пікірлер: 291

@jennifertorresyee7887 8 жыл бұрын

best 14 minutes ever spent! your video summarized in 14 minutes what 2 hrs of ventilation lectures didn't at my school... THANK YOU!!!

@Medcram 8 жыл бұрын

+Jennifer Torres Glad the video was helpful- thanks for the feedback!

@buyornot543 8 жыл бұрын

wow, compared to the PhD teaching at my medschool............ this is pure gold.

@jennygonzalez1281 9 жыл бұрын

I'm studying to take my Step one next month and never understood this, after a youtube search on V-Q mismatch I stumbled upon this, thank you so much! It's so clear now, better late than never! :)

@Medcram 9 жыл бұрын

Jenny Gonzalez Glad we were able to clear up VQ mismatch for you- thanks for the feedback

@RavishingSailor 6 жыл бұрын

Thank you so much for all your videos. I'm in my third month as a first year pulmonary/CC fellow and have been using your videos to reinforce concepts that during residency I found very confusing. You have such a talent. Thank you

@johnmichael5135 9 жыл бұрын

ur lectures go hand in hand with your picture - you explain so clearly that it is like you are spoonfeeding us the exam answers :) so glad to be subscribed.

@Medcram 8 жыл бұрын

See the whole series at www.medcram.com along with other top quality videos including reviews in pulmonary, cardiology, infectious disease, and hematology!

@xinfam0usxplayax 5 жыл бұрын

Wow. ICU presentation today covering MOA hypoxemia. This was the only thing i had trouble explaining. Thank you!!

@gautammure 3 жыл бұрын

Incredible illustration, Doctor. Bravo! The best I have ever seen. Crisp, eloquent and to the T.

@jae89latina 10 жыл бұрын

Blew my mind how simply it was explained! Loved the illistrations

@lobarita 3 жыл бұрын

ICU nurse here: hard to keep up with, but still very helpful. Thank you guys.

@amandanifong7903 3 жыл бұрын

Came here to grasp it for nursing school... And DANG. This was fantastic! Exactly what I needed. Thank you!

@gonzojed1 8 жыл бұрын

Straight forward, concise and in layman's terms. Very well done, thank you for your time and effort.

@shakhirrt5188 8 жыл бұрын

You got a very rare talent that many people dont have..thanks a lot...

@madheehmohamed9093 7 жыл бұрын

shakhir rt

@ischupak6767 8 жыл бұрын

Legend. If only you were my lecturer! So clear & easy to understand! THANKS A MILLION!!!

@jasmac84 9 жыл бұрын

your lectures are great I finally understand so easy to follow... I have been to several lectures on VQ mismatch over the years and could not get my head around it... I listen to your lecture and bang I finally understand it. I'm glad our Uni lecturer suggested to watch your videos..

@Medcram 9 жыл бұрын

Jason MacAskill Thanks for the feedback- glad the video helped clear things up

@Cypher1210 8 жыл бұрын

You are a god! Pulmonary Physiology exam coming up & this explained it so much better than my professors rambling!

@aldys2005 10 жыл бұрын

You have a great way of teaching. Simple and precise! Thank you!

@elizabethallen3751 10 жыл бұрын

These have been great, thanks for posting. Everything is clearer now!

@hyrum_abiff4325 4 жыл бұрын

Love the analogy of ' air goes in and out and blood goes round and round' - this is what I jokingly tell people my bachelor of paramedical science taught me. However, essentially keeping a VR and HR going is one very good end goal for treating acute patients, generally speaking. I'm sure you know where I am coming from. Peace

@ashmano23 6 жыл бұрын

Hallelujah !!!!!!!!!!!!!!!! May God bless you million times million. I completely understood the concept, I was so lost before i watched this video. :') Thank you

@artiepie 11 жыл бұрын

I am a pulmonary hypertension patient and have to have a double lung transplant. This lecture really helped me understand what the docs are talking about when they say my pressures are at certain levels. Thank you

@myprettygirl91 4 жыл бұрын

this is absolutely amazing. I've been trying to understand this concept for literally hours. i get ittttt

@Medcram 4 жыл бұрын

Thank you for watching!

@fatboy117 6 жыл бұрын

Finally a well explain concise video with ways to apply this concept

@jennigiatroudakis4240 8 жыл бұрын

Very helpful! But one suggestion: Khan's professors are great at using different colors to help organize paths ways or thought. I would have appreciated that especially in the beginning of the video.

@padersam2012 10 жыл бұрын

thank you for such a clear explanation of V/Q mismatch

@vinnyfrancio23 7 жыл бұрын

Very good explanation of quite difficult topics for the USMLE step 1. Thank you Sir.

@kheeters 8 жыл бұрын

this was incredibly helpful!! one topic of interest (may already be covered, havent looked to see yet) differentiating PA02 from Pa02 from percent saturation from Fi02, and the different pathologies impacting all of these values (CO poisoning, altitude sickness, methemglobinemia, etc)

@emilysummer1373 6 жыл бұрын

I have stage IV COPD with VQ mismatch and PH and nobody ever explained what this meant to me. Thank you!! Now I realize why I must keep 02 on always and monitor with pulse oximeter.

@laryssablunt8299 8 жыл бұрын

GREAT demo! Clear and informative!

@cocokrisp8967 7 жыл бұрын

Fabulous! great visuals and clear instruction!

@uzairjavaid219 8 жыл бұрын

Way of your explanation is matchless... A big applause for you

@Medcram 8 жыл бұрын

Thank you

@ruannelynch9912 9 жыл бұрын

After reading over the same 3 paragraphs about 4 times in my text book, i bounced up this you tube explanation and i can finally read on. Thank you very much.

@Medcram 9 жыл бұрын

Ruanne Lynch Good to hear the video made the textbook more readable- thanks for the comment

@charlotteportzen3337 11 жыл бұрын

You are helping me get through nursing school. Thank you so much for these videos.

@skizaftis 7 жыл бұрын

Fantastic explanation. You are doing great job!

@singleswomen3929 4 жыл бұрын

Doc am grateful for all your materials.have learnt a lot Anaesthestist resident in Nigeria

@KBearRawrRawr 11 жыл бұрын

This is a really thorough and clear concise explanation of V/Q mismatch thank you so much!

@hillcat2008 10 жыл бұрын

Love this series! I may pass this exam after all!

@prantikachakraborty7330 7 жыл бұрын

you are unique at making difficult concept easier..god bless you

@cnmacias1 11 жыл бұрын

You explained things wonderfully! Thank you for making this topic simpler for me.

@captainvdog6871 4 жыл бұрын

Dude! You are a rockstar at explanations!!

@7r1n3santiago 10 жыл бұрын

great video and easy to understand! please keep posting

@maveille 9 жыл бұрын

Extremely helpful and concise. Thank you very much!

@drbirendrakishorenayak1037 6 жыл бұрын

Excellent for the biggner and really very talented explanation which makes easier

@Shaf2010 10 жыл бұрын

Thank you so much.For the first time,I can say that I understand Hypoxemia.

@natalielouise2865 10 жыл бұрын

Absolutely awesome! Why can't clinicians just explain it like this? Thank you ever so much for making study easier

@Medcram 11 жыл бұрын

Glad it was helpful - thanks.

@nicollepicton3208 7 ай бұрын

Thank you! This is super helpful.

@funtimecruz 10 жыл бұрын

That was great. Thank you for your time in explaining.

@itsssmenil7287 5 жыл бұрын

thank you! very informative!Please make a video also for respiratory failure.

@MijntjeV 11 жыл бұрын

Wauw, this is soooo incredibly helpful! My test is tomorrow and I have higher hopes now haha! Thanks a lot!! X

@lutfinurfarid9176 10 жыл бұрын

Very helpful, the explanation is very clear. Thanks!

@m33rebus 9 жыл бұрын

Loving your videos, it made applications of medicine much more easier to understand! Also, just wondering, how does hypocapnia play out in the compensating of this situation?

@sanj5026 10 жыл бұрын

Roger. Thank you for all the videos. Please keep them coming!! Very helpful for a respiratory therapist student that's just entering his/her clinical practice :D

@ValentinoOoOksa 10 жыл бұрын

Thank you for the great and easy demonstration that was very interesting .. You made every's clear so far .. Thanks again

@kasahunbentimerga3006 7 жыл бұрын

You are my favorite, as usual!

@pallavirao4127 5 жыл бұрын

Beautifully explained.. Thank you

@rburdman87 9 жыл бұрын

I was just diagnosed with this today and my head was spinning. Thanks for an easy to understand tutorial.

@paydenaronson524 9 жыл бұрын

You can not be diagnosed with v/q mismatch... You can be diagnosed with pneumonia or asthma or anything else but not v/q mismatch...

@rburdman87 9 жыл бұрын

Payden Aronson Interesting...I have documentation stating VQ mismatch from a Cardiologist and a pulmonary team. Had 2 right heart cats done and one was a stress cath ... I am not contradicting you, I don't know enough about it to say who is correct.

@Hernandez877 7 жыл бұрын

Thank you so much. My professor didnt even let me know that Q was perfusion

@rody2022 9 жыл бұрын

Thank you so much for your clear explanation. I finally understand V/Q balance and imbalance, yay!

@Medcram 9 жыл бұрын

Roddy Gee Good to hear- Thanks for the comment!

@hasanabad9141 8 жыл бұрын

Thank you for your video. I just have one question regarding pneumonia and pulmonary edema, i.e. In those states, is it that you have increased fluid in the alveoli resulting in impaired ventilation but normal perfusion, creating an intrapulmonary shunt? So why would supplemental oxygen improve oxygen status in this case? Thank you in advance.

@marygraham8120 10 жыл бұрын

@Tye, Aa refers to alveolar-arterial gradient and the concentration of oxygen of both areas.

@jennaisrael7091 8 жыл бұрын

Very Helpful!! I would love to you go through a few more examples of pathology that lead to V/Q mismatch for example when V/Q is low like in bronchospasm or something like COPD/Asthma that affects both lungs in their entirety.

@Medcram 8 жыл бұрын

+Jenna Israel Thanks for the comment and suggestion!

@katyaa7865 10 жыл бұрын

Great video has made it all a bit clearer!

@kristinruttan5451 11 жыл бұрын

great explanation! this made V/Q very easy to understand. thank you!

@rizkiadrianhakim 10 жыл бұрын

Very clear explanation, thanks !

@hotfoot214 11 жыл бұрын

DR you are a genius.i know understand hypoxema better than after reading all those stuffy texts.thank you

@Y-4801 8 жыл бұрын

Such a great video!

@lemonsqueezycrafts6818 11 жыл бұрын

Thank you very much for these lectures - really helps!!

@Drexelle 11 жыл бұрын

Great video! Now (just to tie it all in) I gotta go find the one where you describe and explain "Shunt". I am a Trauma/Burn ICU RN who loves to understand the rationale behind what we do. Thank you!

@Twelvesteps 11 жыл бұрын

Thank you for helping me on my National Respiratory Therapist exam.

@JelliBaby780 8 жыл бұрын

Lifesaver please continue doing this!!!!

@Medcram 8 жыл бұрын

+JelliBaby780 Thanks! More videos coming soon

@awesomeo46 5 жыл бұрын

Super helpful, thank you so much!

@farahzubaidy6116 7 жыл бұрын

thank u so much for this great explanation

@jportillo151 8 жыл бұрын

Great explanation!

@IndyaBeerens 3 жыл бұрын

from the bottom of my heart..... thank you

@Martin-uj4mi 7 жыл бұрын

Hey I have a question. Does a reduced V/Q in one area of the lung *always* increase V/Q in another area of the lung? Thanks so much in advance!

@gabrieltangco8498 4 жыл бұрын

Very helpful!! Thanks so much!

@rakeshkiru1232 10 жыл бұрын

firstly thanks so much for such a nice video . just one question is there chance of V/Q mismatch in case of hemothorax ?

@KhaleesiofKansas 11 жыл бұрын

VERY helpful and informative. Thank you!

@chrisjauregui7308 9 жыл бұрын

Great material, simple to understand.. thank you

@Medcram 9 жыл бұрын

Chris Jauregui Thank you- glad it was helpful

@gtwomey0423 11 жыл бұрын

great explanation!

@judochopthefed 5 жыл бұрын

My understanding of V/Q in the different Lung Zones. where the alveoli get smaller as its gets to the lower zones of the lungs are high V/ Q since the alveoli are smaller and easier to ventilate and perfuse but in the higher zones have larger alveoli has less V/Q since the alveoli are larger in the higher zones of the lungs. Your video showed me a total opposite of what I understand or think I remember with respect the V/Q in the Alveoli in the different Lung Zones.

@11zen45 8 жыл бұрын

Thank you sooooo much. Bless you. I appreciated your simple & clear explanation.

@Medcram 8 жыл бұрын

+Vanessa James Thank you for the feedback

@Andolem 11 жыл бұрын

Excellent video, thanks.

@lrosedunn 9 жыл бұрын

You are amazing! Love your videos!

@simonbarry6582 8 жыл бұрын

Very good tutorial, very well explained. One thing you do that is soo--o-o often done badly in medical tutorials/discussions is that you have made sure the basic terminology and concepts are explained along the way. Btw this video also taught me PE fundamentals better than anything I've read on PE!

@Medcram 8 жыл бұрын

+Simon Barry Good to hear- glad this helped in your understanding, and thank you for your topic suggestion. We look at all topic suggestions like yours in planning for new videos

@bluesapphire471 11 жыл бұрын

Words cannot describe how grateful I am for this video! Dr. Seheult did an EXCELLENT job in breaking down the concepts. I am clearly able to grasp the concepts!!