VQ Mismatch - Ventilation Perfusion Mismatch & Ratio (Remastered)

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MedCram - Medical Lectures Explained CLEARLY

Күн бұрын

Get clarity on V/Q mismatch(ventilation/perfusion mismatch) with illustrations by Dr. Roger Seheult of www.medcram.com/?Y... . This video is part of the "MedCram Remastered" series: A video we've re-edited & sped up to make learning even more efficient.
This video is one part of the full course on the five main causes of hypoxemia. Each of these causes is explained in a video: high altitude, pulmonary diffusion, hypoventilation, shunting, and VQ mismatch.
Visit www.medcram.com/courses/hypox... to view all 5 causes of hypoxemia?KZfaq&Video&Video+Link+Clicks&VQ+Mismatch+-+Ventilation+Perfusion+Mismatch+%26+Ratio+%28Remastered%29&QlhqU
Visit www.medcram.com/?Y...
for the rest of this course (on hypoxemia and causes of respiratory failure) and over 100 lectures. This is the home for all MedCram.com medical videos (many medical videos, medical lectures, and quizzes are not on KZfaq).
Speaker: Roger Seheult, MD
Co-Founder of MedCram.com ( www.medcram.com/?Y... )
Clinical and Exam Preparation Instructor
Board Certified in Internal Medicine, Pulmonary Disease, Critical Care, and Sleep Medicine.
Visit www.medcram.com/?Y... for hundreds of clear & concise videos
MedCram = MORE understanding in LESS time
MedCram: Medical education topics explained clearly including: Respiratory lectures such as Asthma and COPD. Renal lectures on Acute Renal Failure and Adrenal Gland. Internal medicine videos on Oxygen Hemoglobin Dissociation Curve and Medical Acid Base. A growing library on critical care topics such as Shock, Diabetic Ketoacidosis (DKA), and Mechanical Ventilation. Cardiology videos on Hypertension, ECG / EKG Interpretation, and heart failure. VQ Mismatch and Hyponatremia lectures have been popular among medical students and physicians. The Pulmonary Function Tests (PFTs) videos and Ventilator-associated pneumonia lectures have been particularly popular with RTs. NPs and PAs have provided great feedback on Pneumonia Treatment and Liver Function Tests among many others. Dr. Jacquet teaches our FAST exam tutorial & bedside ultrasound courses. Many nursing students have found the Asthma and shock lectures very helpful. We're starting a new course series on clinical ultrasound & ultrasound medical imaging.
Recommended Audience - Medical professionals and medical students: including physicians, nurse practitioners, physician assistants, nurses, respiratory therapists, EMT and paramedics, and many others. Review and test prep for USMLE, MCAT, PANCE, NCLEX, NAPLEX, NBDE, RN, RT, MD, DO, PA, NP school and board examinations.
More from MedCram medical lectures:
Website: www.medcram.com/?Y...
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Twitter: / medcramvideos
Subscribe to the official MedCram.com KZfaq Channel: kzfaq.info_...
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 doctor or health care provider.

Пікірлер: 52

@smithjohnson617 3 жыл бұрын

Do you just want to take my med school tuition at this point?

@mohamedorayith4626 4 жыл бұрын

Arguably the best explained video on a complex topic like V/Q! Freakin legend, me and everyone else can't thank you enough. Much love

@Medcram 4 жыл бұрын

Thank you!

@nguyenduchuy1599 2 ай бұрын

This video is helping so many generations of med students. Thank you sir!

@ICU_NERDSE 5 жыл бұрын

SO MUCH BETTER THAN ANOTHER VIDEO I WATCH AND WAS COMPLETELY LOST!

@andreafarrar4508 3 жыл бұрын

You are a true blessing! Thank you for such an incredible explaination!

@bomt697 5 жыл бұрын

Thank you for so clearly explaining this!!!

@leonardomaradiaga7945 2 жыл бұрын

amazing job. now I'm able to understand this subject more clearly

@kristinaswaguilera 2 жыл бұрын

wayyy better than my school can do. They should just assign us your videos to watch

@itswendyt 5 жыл бұрын

You're amazing! Thank you for this.

@abhi00111122223333 3 жыл бұрын

Very clear explanation! Thank you :)

@markpowers349 5 жыл бұрын

Excellent video thank you.

@PeaceOfMind_999 3 жыл бұрын

thank you for explaining so good

@CaliforniaEBRDude Ай бұрын

Good video. Thanks!

@jennyd4421 4 жыл бұрын

You helped me pass my CCRN! Thank you!!!

@Medcram 4 жыл бұрын

Happy to help!

@bedjauidesu5053 Жыл бұрын

Thank you sir , you're a legend 🌼

@sinclair657 Жыл бұрын

Absolutely appreciated

@you4us 2 жыл бұрын

thx again and again! phenomenal

@adhipnadkarni375 3 жыл бұрын

Thank you so much!!! Made it so easyyy!!!

@qasimhashmi7512 5 жыл бұрын

Good explanation (y)

@joshaa9361 7 ай бұрын

Thank you.

@silvaanimelover8924 Жыл бұрын

thank u so much ! we love u !!!!

@vladimirfernandez347 4 ай бұрын

I cant thank you enough

@how-toswithmark902 5 ай бұрын

You just saved me

@OscarEggen 4 жыл бұрын

Death space and shunting are extreme V/Q mismatch or pathological shunts or even both?

@aoira 3 жыл бұрын

7:47 for example in hypoxemic patient with pneumonia you can't say the patient has low v/q mismatch the accurate way to describe it is by saying the patient have low v/q ratio ?

@edtapia8580 4 жыл бұрын

Hello. Thank you for the excellent video and youtube channel doctor. I have 2 questions: 1- I understand V/Q mismatch is physiological and we normally have because of the difference between the apex and the base of the lung, then why don´t we all have hypoxemia? 2- Wouldn´t pneumonia cause hypoxemia through shunt mecanism due to the exudate inside the alveoli? Thanks again! and much respect.

@lovemilfa 4 жыл бұрын

I have the same question.

@reyespiano945 4 жыл бұрын

I have the same 2 questions

@tripunk 4 жыл бұрын

2 - pneumonia doesn't affect every single alveoli the same - there may still be some functional and normal ones in the sick bunch that can still ventilate the capillaries, so it's not a true shunt.

@jalenpadilla7744 Ай бұрын

Question: in the pulmonary embolism example, are you saying that the blocked portion of lung is high VQ? Or dead space? So in that case giving 100% oxygen would be helpful because the hyper-perfused alveoli would be able to keep up with the flow of rbcs? I’m Trying to understand it better.

@tailorforeman7082 Ай бұрын

So is the reason there is low ventilation in the base is because there is more blood flow with allows less time for ventilation to occur before the blood is moved out of the capillary for shunting?

@hienlethi3606 2 жыл бұрын

how did you do it can you share with me , thank you

@JosephCarbis Жыл бұрын

Would remodulin help with this?

@Cyborgman71724 4 жыл бұрын

@medcram can't drowning cause V/Q mismatch?

@saswatadms 4 жыл бұрын

Hi, I have a doubt, you just explained that the upper areas of the lungs have a higher V/Q ratio compared to the lower areas. Is that the case when there in no pathology at all and everything is okay in the system? Or is it only the case when if the lungs are diseased?

@nunchukgrl2 4 жыл бұрын

Occurs normally.

@iantru9929 2 жыл бұрын

Hmm.. now I know what v/q is but still don't know what mismatch is.

@catherinecunniff4637 3 жыл бұрын

So this is probably a dumb question, but I can’t figure it out. You said that v/q ratios are higher in the apex than the bases, and that v/q mismatch occurs because of the juxtaposition between high v/q in one part of the lung and a low v/q in another. My question is, why isn’t a v/q mismatch standard? If the apex is high and the bases are low.... if an obstruction in the apex, say emphysema caused the apex v/q to lower, wouldn’t it now match the bases more closely and therefore not have a mismatch anymore?

@sammcd779 3 жыл бұрын

thank you! my teacher clearly does not understand this!

@Moosemoose1 2 жыл бұрын

I have a question: you said all V/Q mismatch besides shunting responds to O2, But I've heard from other lectures that only high (V/Q>1) mismatch responds to O2 and low (V/Q

@Medcram 2 жыл бұрын

Mismatch is when you have both. I.e. they are not matched.

@salampakistan459 5 жыл бұрын

Seems easy

@PriyaVerma-tk3cs 2 жыл бұрын

👍

@farzeenahmd7958 2 жыл бұрын

👍👍👍👍

@codyw4140 5 жыл бұрын

so i this why a lot of septic patients are SOB? the distributive shock dilates the vasculature causing a V/Q mismatch? And that giving a pressor could potentially relieve the SOB (understanding o2 application would be the better/easiest/basic option first)

@akimbo5u 5 жыл бұрын

septic patients are a little more complicated because spetic patients produce more CO2, they are hypoxemic AND hypoxic! so their core issue is deeper than V/Q mismatch because their V/Q mismatch stems from hypercapnia