Ventilation/ Perfusion Ratio (V/Q) and V/Q Mismatch - Respiratory Physiology & Pulmonology

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Ventilation/ Perfusion Ratio (V/Q) and V/Q Mismatch - Respiratory Physiology & Pulmonology

Рет қаралды 98,756

Күн бұрын

Ventilation-Perfusion Ratio (V/Q ratio) and ventilation-perfusion mismatch…Dead-space physiology vs Pulmonary Shunting physiology…Intrapulmonary shunt vs intracardiac shunt.
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Пікірлер: 116

@MedicosisPerfectionalis 2 жыл бұрын

🧠 Autonomic Pharmacology Lectures: www.medicosisperfectionalis.com/ 📝 Download Notes: www.medicosisperfectionalis.com/

@roaaalsakka268 4 жыл бұрын

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@MedicosisPerfectionalis 4 жыл бұрын

Haha 😂

@Gbtorint 2 жыл бұрын

This statement ‘medicine makes perfect sense IF explained properly’ is so underrated tbh

@MedicosisPerfectionalis 2 жыл бұрын

Thank you so much! I agree!

@jforjusticegemtamohamed926 4 жыл бұрын

Dear you are the common sense doctor I like and I wish I would know you more and share a lot.You said." medicine makes sense when you explain ." I liked you so much I like reading Guyton,medical physiology text book for it really make you sensible doctor.I call a bit out of fashion for I despise these question and answer type of study purly directed at passing an exam,I know some times it hurts but honestly medicine is so great that way.Thank you for your superflowing explanation with ease.

@MedicosisPerfectionalis 4 жыл бұрын

You’re welcome 😇 Good luck! 👍

@zubariaqureshi9877 4 жыл бұрын

I dn know why you have few likes.. You deserve million of likes man❤

@MedicosisPerfectionalis 4 жыл бұрын

Thank you so much 😊

@B3bita1215 4 жыл бұрын

Lollll you are so silly, yet so entertaining at the same time.... thanks for making learning a fun environment. You did an amazing job at explaining 👍🏼

@MedicosisPerfectionalis 4 жыл бұрын

Thanks 😊 I am honored! Can you please help me by sharing?

@umerbinshabir6561 4 жыл бұрын

You deserve million views sir

@MedicosisPerfectionalis 4 жыл бұрын

Thanks a million!

@rgill4999 4 жыл бұрын

I really needed this. Thank you

@MedicosisPerfectionalis 4 жыл бұрын

My pleasure 😇 Can you please help me by sharing?

@vangelisantoninis9065 Жыл бұрын

Your explanation is amazing and simultaneously funny! After that i will remember v/q mismatch for a decade!

@kygore5136 4 жыл бұрын

Thank you so much! Your videos are helping me get through nursing school! Thank you, Thank you, Thank you!!!!

@MedicosisPerfectionalis 4 жыл бұрын

It’s my pleasure 😇 Good luck to you 🍀 The world need more people like you! Can you please help me by sharing?

@95tanishamodi56 3 жыл бұрын

Hey there! Your videos are amazing, i would never be able to remember these details but you explain everything in such an easy manner i really am able to remember things!

@MedicosisPerfectionalis 3 жыл бұрын

Awesome 👏 Thank you so much for watching!

@Farheen78601 2 жыл бұрын

Your teaching is marvelous...also your jokes in between gives a good laugh

@MedicosisPerfectionalis 2 жыл бұрын

Thank you 😊

@salmanawab7303 Ай бұрын

Well explained. Thankyou so much. 🤩

@MedicosisPerfectionalis Ай бұрын

My pleasure!

@ME-id7nz 4 жыл бұрын

you made a very hard subject into freaking 😆easy 😘thank you very much doc

@LaLolaMaria 2 жыл бұрын

These videos are AMAZING!!! Thank you so much!!

@MedicosisPerfectionalis 2 жыл бұрын

My pleasure 😇

@umerbinshabir6561 4 жыл бұрын

You are such a gem sir

@MedicosisPerfectionalis 4 жыл бұрын

Thank you so much 😊

@kipkipour4507 Жыл бұрын

Thank you from the bottom of my heart! You are a savior!!! I have a question in 19:14 isn't that supposed to be BRONCOconstriction instead of VASOconstriction??? As you explain in the next sentence, the purpose is to narrow the BRONCHUS (not the VESSEL), when hypoperfussion takes place... Or am I wrong??? I dont know, thats why I ask my savior! Thaaaaaaanks again!

@ZaWakingEagle 2 жыл бұрын

I really should've started with your videos earlier in my studies

@MedicosisPerfectionalis 2 жыл бұрын

Thank you 😊

@mulhwahaleaugustine2224 3 жыл бұрын

Thank you so much for the on point video. Very well illustrated to suit all level.

@MedicosisPerfectionalis 3 жыл бұрын

Thank you 🙏

@Burrdmizzle 2 жыл бұрын

"dont just go 1,2,3,4 show me your me your back like an idiot, auscultate above the clavicle'', I cant stop laughing :D

@MedicosisPerfectionalis 2 жыл бұрын

Haha 😂

@hussam7033 4 жыл бұрын

hello dr. I hope you do answer questions here. I am having a bit of a problem in understanding why in obstructive lung diseases there is decreased ventilation. I know that it is very intuitive to understand why but I clearly recall that the problem in obstructive lung diseases was in expiration not in inspiration. Perhaps it is wrong to associate inspiration and ventilation together but for some reason I am associating them.

@NicholasTXTV 2 ай бұрын

Can you provide a few references for this information? Not saying your incorrect but would help me tremendously for my essay

@MedicosisPerfectionalis 2 ай бұрын

See Guyton’s, Ganong’s and Boron’s Physiology textbooks. They have a lot of citations.

@smsmsa9255 2 жыл бұрын

Thank you so much for the great explanation. You're the best!!!

@user-fd7jm5pc8s 2 ай бұрын

Thanks ❤❤

@MedicosisPerfectionalis 2 ай бұрын

My pleasure!

@Evilslayer6969 Жыл бұрын

Please add refrences and further reading if possible .. thanks🔥

@rohit-fi2kc 4 жыл бұрын

Hi, hello my dear friend medicosis perfectionalis, simply u are just awesome. Nothing to say more. Thanks for ur sharing knowledge.

@MedicosisPerfectionalis 4 жыл бұрын

You’re very welcome 😊

@himanshighunawat9469 Жыл бұрын

Fav physio channel

@amalomer3113 8 ай бұрын

I adore this channel wallahi❤

@MedicosisPerfectionalis 8 ай бұрын

Thank you!

@Milinokokoro 4 жыл бұрын

I like you videos so much. This one was hilarious xD. Great job!! ♥️

@drnithyachandru Жыл бұрын

Extraordinary.. full content thoroughly touched with clear explanation…

@MedicosisPerfectionalis Жыл бұрын

Thanks a ton!

@virginiaandreotti 4 жыл бұрын

You saved me twice in a day

@MedicosisPerfectionalis 4 жыл бұрын

I didn’t do anything! Thank you so much 😊

@CarlosPires-du3ps 8 ай бұрын

my professor asked the exact same question: "Is it worse to have high V/Q or low V/Q?" I know both are bad, but which one is worse if you had to choose one?

@jxij99 2 жыл бұрын

Very easy to understand. Thanks a lot.

@MedicosisPerfectionalis 2 жыл бұрын

My pleasure 😇

@Mikesco10 3 жыл бұрын

i have a question; i always see the equation written like this: Co2 + H2O H2co3 Hco3 + H ... y does it say co2 + water if CA is removing the water to form carbonic acid? another question; in decreased ventilation shouldn't the PaCO2 go up? or is normal because its corrected by increased respiratory rate?

@abulmuslimchartaev8017 4 жыл бұрын

5:34 there is maybe a mistake. Part where “normal apex”. If I’m not right, explain pls

@MohammadYounos 4 жыл бұрын

Yes, you are right. At the apex of the lung both perfusion (Q) and ventilation (V) are decreased, but the decrease in Q exceeds the decrease in V, making the V/Q ratio relatively high. Otherwise, it is really a perfect video.

@michaeldefreitas6441 3 жыл бұрын

Hi medicosis! i had a question about 10:48 when you mentioned emphysema leads to decreased V/Q ratio. What you say makes sense; however, everywhere online Ive seen that emphysema is an example of increased V/Q mismatch. Currently watching Dr. John B. West's resp phys lectures and he states that emphysema leads to higher V/Q inequality due to some ventilation but little perfusion in the destroyed lung tissue. Again, id like to say that both your reasoning and his makes sense to me, so its a bit difficult to piece things together lmao. Love your videos man, hope you can help! -a young M1

@zishanahmad7089 Жыл бұрын

Hi thankyou❤ Lower lobe infarction common due to more diffusion or more purfusion In your notes written diffusion while in your video speaking perfusion? Please explain

@manarabdelaziz6302 4 жыл бұрын

What happens to alveolar ventillation in theses cases 1- testrictive lung disease 2 -obstructive lung disease 3- airway collapse 4 increasing compliance ?!! Can you give me the answer as Unfortunately I cannot answer that

@eltayabmohamed9549 2 жыл бұрын

Good done, thank you

@mst.fatamajalee9118 3 жыл бұрын

Superb explanation

@svetlanakhaimchayev7894 3 жыл бұрын

The V/Q mismatch will always be mismatched, the closest that we will be to attaining 100% is in the middle of the lung? @ the apex we will have a higher ratio, and @ the base a lower, ratio? So when does this become a problem if it is always mismatched?

@Kem9s 4 жыл бұрын

11:35 F

@adityapaudel6016 4 жыл бұрын

Emphysema has low V/Q right? Damaged Alveoli causes loss in ventilation with same perfusion which will result in low V/Q.

@MedicosisPerfectionalis 4 жыл бұрын

Excellent

@giovanniielapi9296 4 жыл бұрын

Hi sir, Hope you can answer me back!, if we have dead space, so no gas exchange, why pO2 is nearly 100 mmHg like normal situation? I was expecting like "shunting".

@vanessahjohn9447 5 ай бұрын

your a genius

@thecharming473 3 жыл бұрын

It's a humble request pls make some videos on immunology as well... Please... Thank you

@MedicosisPerfectionalis 3 жыл бұрын

Ok 👍

@allamalik4209 3 жыл бұрын

هههه ربنا يحفظك و تبقى 100 سنة يارب❤

@MedicosisPerfectionalis 3 жыл бұрын

Thank you 🙏

@shimom5724 4 жыл бұрын

thanks for that perfect video

@MedicosisPerfectionalis 4 жыл бұрын

You’re very welcome 😊 Can you please help me by sharing my videos with your friends?

@bajesame4035 2 жыл бұрын

How to get these video form pateron these videos are free ?

@shekibamadadi9738 4 жыл бұрын

Great explanation ❤️

@MedicosisPerfectionalis 4 жыл бұрын

Thanks 😊

@lstrawaya6403 3 жыл бұрын

I love you , you’re my hero

@MedicosisPerfectionalis 3 жыл бұрын

Thank you 🙏

@milymaj 2 жыл бұрын

3:25 - I think there is an error in "in the base" line. Shouldn't it be: "increased V, but Q increased even more"?

@odalisogum749 11 ай бұрын

Yeah thought same

@TanTan-ch3vq Ай бұрын

Same with you, he confused us also at 9:29 , there he said there is increased ventilation in apex. Should be decreased ventilation in apex

@SuperYaniv12 3 жыл бұрын

awesome!

@GZH88 4 жыл бұрын

thanks for ur effort,but in obstructive lung disease with low v/q ratio,i think u should have hypercapnea not normocapnea,what do u think?

@MedicosisPerfectionalis 4 жыл бұрын

Give me an example.

@GZH88 4 жыл бұрын

@@MedicosisPerfectionalis Thanks for answering me,i mean all type 2 respiratory faliure is hypoxic hypercapnic or at least thats how they teach us.

@umerbinshabir6561 4 жыл бұрын

@@MedicosisPerfectionalis In COPD problem is in expiration so CO2 is retained leading to hypercapnia

@hhhhadysomebodycomegetters3433 Жыл бұрын

10:46 shouldnt emphysema have a high v q ratio ??

@vildanak2489 4 жыл бұрын

can ventilation defect cause hypercapnia? less o2 is in the alveoli so i thought Paco2 would be higher

@MedicosisPerfectionalis 4 жыл бұрын

Hypoventilation can cause hypercapnia. Also, hyperoxia can cause hypercapnia.

@shiroatsuki520 3 жыл бұрын

Why does Wikipedia say emphysema is high vq

@gayathrijinesh3004 4 жыл бұрын

15:28 why is it 40? Can't it be any number less than 105?

@m_-_a-shadow7674 Жыл бұрын

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@hral-aeen4206 4 жыл бұрын

Amazing ❤️❤️❤️😍

@shasanain 3 жыл бұрын

You’re the GOAT

@MedicosisPerfectionalis 3 жыл бұрын

Thank you ☺️

@gayathrijinesh3004 4 жыл бұрын

When the vessel is closed, close the bronchus... Does that happen? There is bronchoconstriction?

@MedicosisPerfectionalis 4 жыл бұрын

I am sorry, I don’t understand your question

@gayathrijinesh3004 4 жыл бұрын

@@MedicosisPerfectionalis The last statement of the video Decreased perfusion. Does it cause closing of bronchus?

@juanlui284 4 жыл бұрын

We're on Earth, Nothing is a 100% 🤦‍♂️

@joel1234104 3 жыл бұрын

Did you just make a reference to Tamannah as in the Indian actress Tamannah? :O

@063jeyanithilap5 3 жыл бұрын

was searching for this comment

@medicobhowmik 10 ай бұрын

Lol you took Bollywood as a joke 😅😂

@amiraboumerah4645 8 ай бұрын

❤❤❤❤

@MedicosisPerfectionalis 8 ай бұрын

@juanlui284 4 жыл бұрын

Dead space for fools 🤦‍♂️

@MedicosisPerfectionalis 4 жыл бұрын

???

@noknack9187 8 ай бұрын

I bet u can't pin my comment 😌🤧

@simakahamed9445 4 ай бұрын

He talk a lot, at last can't remember anything 😢😢

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@TanTan-ch3vq Ай бұрын

At 4:22, you said there is decreased Ventilation in apex; At 9:29, you said there is more ventilation in apex. Which statement is correct?

@MedicosisPerfectionalis Ай бұрын

The apex has less ventilation than the base. However, the apex has a higher ventilation-to-perfusion ratio than the base.

@TanTan-ch3vq Ай бұрын

Thanks for clarification

@eltayabmohamed9549 2 жыл бұрын

Good done, thank you