Oxygen Content - Oxygen Saturation (SaO2 %) - Oxygen Partial Pressure - Respiratory Physiology

Oxygen Content, Alveolar oxygen (PAO2), Partial pressure of arterial oxygen (PaO2), Oxygen Percent Saturation (SaO2 %) - Fraction of inspired oxygen (FiO2), Partial Pressure of inspired oxygen (PiO2), atmospheric pressure, Pulse oximetry, arterial blood gas (ABG), gas exchange, oxygen and carbon dioxide (CO2), ventilation, perfusion, diffusion, alveoli, breathing, hemoglobin concentration, anemia…Respiratory Physiology…Pulmonology (Reapiratory Therapy, Respiratory Internal medicine,PiO2, FiO2, PAO2, PaO2, SaO2, PvO2, CaO2, DO2, PaCo2, PvCo2, Acidosis, Alkalosis, Acid-Base.
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[@MedicosisPerfectionalis]

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[@misstaniamaryam]

"if you can't explain simply, you don't understand it well enough" ... Absolutely Agree! There are so many professors in medical school simply reading off slides... You seriously inspire me a lot! Thank you soo much for your hard work!

[@MedicosisPerfectionalis]

My pleasure 😇 Thank you so much for watching!

[@KinzaHussain]

I completely agree with this...my professors in medical school read off slides for the most part

[@wesleturgez]

Hi, so ... I'm a mechanic, I work in aviation, and I deal with nitrogen quite a lot. It turns out that nitrogen is useful in tires, the nitrogen molecule is larger so it doesn't leak through the pores in the rubber as easily, so tires lose less pressure over time. Nitrogen in tires causes a lower fluctuation in pressure in regards to temperature. The machines that pull nitrogen from the air also removes condensation and therein prevents corrosion of wheels and tires, no air inside the rubber prevents oxidation of the rubber, When nitrogen is used in car tires the nitrogen is replaced several times to ensure that its up to 95% pure. We use nitrogen in every aircraft tire. Thank you for the video, was just a little bit i thought you might enjoy.

[@MedicosisPerfectionalis]

Yeah! Thank you so much for sharing that! I learned a lot!

[@shahdnasr7168]

Ngl I’m Proud that who’s behind this brilliant channel is Egyptian, you’re the best!

[@MedicosisPerfectionalis]

Thank you!

[@MedicosisPerfectionalis]

Please, help me reach 35,000 subscribers and I will start uploading videos on “bleeding and coagulation disorders” instantaneously. Thanks 🙏

[@josetrujillo738]

Hey, it looks like you reached 35,000. Nice!

[@jbariamine4540]

im a morrocan med student we study in french but i love watch eng vids cause they are more informatif i was very happy when you said that you are from egypt we are proud of you and thank you for this explanation

[@MedicosisPerfectionalis]

Thank you so much!

[@chucklingcareco]

Mr. Medicosis Perfectionalis, I finally understood the meaning of FiO2, PAO2, PaO2, SaO2, SPO2, arterial O2 content, Oxygen delivery and Oxyhemoglobin dissociation curve! You are a genius 😂 Thank you so much!

[@ilos9883]

Have been looking for a video that clearly explains these concepts for the last couple of hours and finally found this. The way you explain the topics and make it simple yet very understandable (and fun) is beyond impressive for such a complicated (for me at least) topic. Thank you!

[@MedicosisPerfectionalis]

You’re very welcome 😊

[@OmarNurse]

5:32 مصري يا جدع يخربيت العظمة 😍😘

[@ahmadabdelaziz1396]

You've always had my back, from med school to my MRCS prep. Thanks, bro! ❤️

[@allcreationandnature447]

you are the best! simply explained what other videos on KZbin and lecturers have failed to explain in class. thanks for the mnemonic.

[@MedicosisPerfectionalis]

Thank you 🙏

[@user-or8bd6hi9m]

الشرح ما شاء الله سلس وجميل جدا❤والافضل ان العظمه دى وراها مصرى😂❤

[@MagicMadzMusic]

You’re videos are literally helping me get through the RT program. Thank you 🙏🏽

[@MedicosisPerfectionalis]

You’re very welcome 😊 Good luck 🍀 to you!

[@worldsokayestmedic4568]

For what it's worth, my medic students are required to watch this video and answer a bunch of questions :-)

[@MedicosisPerfectionalis]

Thank you so much 😊 for your comment! And thank you for supporting Medicosis by clicking on the ‘join’ button. It means a lot to me!

[@derrickw3021]

I am a paramedic and this gave me a better understanding of pulse oximetry and the exchange that takes place .

[@MedicosisPerfectionalis]

Awesome 👏 Thank you so much 😊

[@worldsokayestmedic4568]

Outstanding! Everyone talks about right/left shifts, SpO2/SaO2, but almost no one talks about the effect a left shift has on SpO2 being an inverse relationship with PaO2 and net tissue oxygen delivery.

[@MedicosisPerfectionalis]

Thank you so much!

[@drlamaalshammari133]

I obsessed with your channel and your ways about teach,really thank you so much! ❤

[@MedicosisPerfectionalis]

My pleasure 😇 Please help me by sharing! Thank you 🙏

[@ashwazeeshan161]

there are so many med students in the comments and here i am in A levels watching to understand and extract our required syllabus, thankyou

[@MedicosisPerfectionalis]

You’re welcome!

[@HabibahAgianda]

Nice, thanks! Love how simplified they are

[@MedicosisPerfectionalis]

My pleasure 😇

[@ishraquashaikh1419]

Simplified to the core! Thanks!

[@MedicosisPerfectionalis]

My pleasure 😇

[@assiab.b962]

I love how you simplified it ! Thank you!

[@MedicosisPerfectionalis]

My pleasure...I truly appreciate it...Could you-please-share my videos with your friends?

[@Hamo4differentvideo]

I swear you're my best explainer I ever seen in my entire life 🎉

[@MedicosisPerfectionalis]

Thank you!

[@iIbrahimAlii]

I was interested in your hematology playlist specially anemia and i just knew that you are an Egyptian . Now, i got it . I am always telling my friends that Egyptians are the best in demonstrating things and i was true . BTW i am from Saudi Arabia and i really appreciate your efforts brother. Keep the good thing.

[@MedicosisPerfectionalis]

Thanks a lot, bro! Can you please help me by sharing?

[@iIbrahimAlii]

@@MedicosisPerfectionalis sure

[@FORTHEPEOPLE-rs6ei]

@@MedicosisPerfectionalis My daughter age is 12 years and her SPO2 is going up and down sometimes it is showing below 90 (sometimes 60, 70 and 80) and sometime above 90 , RTPCT - Negative, CT SCAN - Normal and CRP Level - Normal

[@Tiggmuffin]

In a standard cbc would a 60% 02sat cause you to suspect something is off?

[@user-vn8ro9iz5x]

Hi Thank you for your video! I have a question about something that is been confusing me so much and I haven’t found an answer to, when you say PaO2 in blood is that in the gaseous state or liquid state( dissolved)? If dissolved then how come it’s 100 mmHg and the solubility of oxygen is only 0.003? Also I read that the partial pressure of oxygen in plasma is equal to the dissolved and undissolved oxygen does that mean (100mmhg of oxygen + 100mmhg*0.003)? Thank you very much in advance.

[@Dan-eb5xm]

Excellent content as usual. As an addendum, here in the US ABGs are drawn and/or analyzed by registered respiratory therapists, not nurses or doctors.

[@MedicosisPerfectionalis]

You’re absolutely correct!

[@ysegura86]

This is definitely facility, unit, and/or state dependent. I’m an ICU nurse here in the US and I’ve been able to stick for my ABGs quite routinely (along w/ RTs, attendings, residents). The consensus seem to be that if you’re a nurse/doc in a critical/emergency role...then it means you can be trained to draw them (I’ve also been trained to use iStat as a point of care gas analysis). 🤷🏽‍♀️

[@whisperingsage]

I am a nurse that had to be a patient in the ICU 2 months. The folks pulling my ABG's were techs, this was a St Mary's hospital.

[@disturbia1378]

Great humor AND good education? Can I just pay YOU my med school tuition?? Love your vids!

[@MedicosisPerfectionalis]

Haha 😂 Thank you so much 😊

[@dipendrapoudel4925]

Lidocaine is an oxidizing agent ,it oxidizes Fe2+ to Fe3+ leading to methemoglobinemia and the symptoms.

[@majosemejia6502]

Wow great explanation. I'm really thankful.

[@MedicosisPerfectionalis]

My pleasure 😇 Can you please help me by sharing my videos with your friends?

[@johnstewart8849]

So, if I use an oxygen concentrator to get to 30% inhaled oxygen, I would be shifting the curve to the right? Are there any risks? I’m thinking more oxygen to brain, heart, lungs is a GOOD thing, no??

[@micahbland8742]

Fantastic job with this 10/10 100/100

[@ashishsaini2327]

I have a doubt, Hb saturation means how much percentage of hb is bound to oxygen. Or How many 02 molecules are bound to one hb. Which one is correct? And if later one, then how 97.5% saturation is possible? Because one hb can bind only 1,2,3,4,5,6,7,8 oxygen atoms

[@user-by2tw3yg7i]

Thank you for your explanation!!

[@MedicosisPerfectionalis]

You’re very welcome 😊

[@chikazulu102]

Okay you are intelligent this is wonderful I'm even excited for myself having gained this wisdom and knowledge thank you so much

[@MedicosisPerfectionalis]

Thank you ☺️

[@suzbarak]

Brilliant as always! شكرًا

[@MedicosisPerfectionalis]

Thanks, dear :)

[@b.s.c.pchairman736]

Did you mean to say 'we use it' or 'measure it' at 4:11. I am kinda confused

[@divyashachopra1355]

Where can I find the answer to the question

[@danielcastilo1840]

Wow ! thank you Dr for the great video, finally a thorough and well explained video detailing O2 content, saturation physiology 👍👍

[@MedicosisPerfectionalis]

Awesome 👏 You’re very welcome 😊

[@demonhunterero1259]

Correct me if i'm wrong sir. So basically, if one person moves, the oxygen fron the blood goes to tissues therefore decreasing oxygen saturation. So movement causes a decrease in oxygen saturation esp during pulse oximetry reading?

[@ZaWakingEagle]

Excellent video. You never fail to impress.

[@MedicosisPerfectionalis]

Thank you 🙏

[@kawthar2282]

Hello dr. Thanks for the video. I have a question about “the shifters”: so if i were to go to a place known for its high temperature, & i get a pulse oximetry test, will my oxygen content be theoretically less than 97% (since there is an increased ‘giving of o2, so less would be in the blood)??

[@zedonutube]

A better videi than most onSo2. Thanks

[@MedicosisPerfectionalis]

My pleasure 😇

[@user-zo5ty1rj3d]

such a great explanation

[@MedicosisPerfectionalis]

Thank you so much 😊

[@Sara0_0b]

يعطيك الف عافيه يا دوكتور ما قصرت I know behind this intelligence is an Egyptian

[@thebryanpereira]

Loved this, and I just wanted to know more about SP02 I'm not even in the medical field lol

[@MedicosisPerfectionalis]

Cool! Did you find the video useful? Please let me know if you have any questions!

[@JuanRuiz-ji6ug]

Me three lol

[@aliahmedqasim9324]

ohhh the mighty intro the best intro the intro that makes me happy even when iam depressed because of the accumulation of lectures oh the intro that makes my day when the doctors are ruining it

[@MedicosisPerfectionalis]

Haha 😂

[@bonzobob3582]

Methemoglobin,nice video

[@user-nz1hg9li9u]

مصر .... هعيط 😢 أنا كمان من مصر حضرتك المفروض تعمل فيديو مخصوص عن قصة حياتك وكفاية إنك من مصر، كنوع من التحفيز لكتير من الطلبة هنا زيي

[@MedicosisPerfectionalis]

Thank you so much, Sir! I will try my best!

[@dhillonb9036]

Where is the answer to the cases in the end?

[@sebasy9431]

thanx from my heart

[@alimansour3550]

OMG I never expected you to be Egyptian, your accent doesn't give it away at all 😂

[@MedicosisPerfectionalis]

Nice to meet you, Ali :)

[@umashankarsharma1911]

What's the answer of the question in the end ??? Is it cyanosis ???

[@euphoria709]

Thanks for your great lecture

[@MedicosisPerfectionalis]

My pleasure 😇

[@Karla6094296]

Very helpful, thank you

[@MedicosisPerfectionalis]

My pleasure 😇

[@riprice1284]

Thank you you helped me get my CNA license

[@MedicosisPerfectionalis]

Wow 🤩 Congratulations 🎉🎈🎊 I didn’t do anything. You did it 👏

[@riprice1284]

@@MedicosisPerfectionalis will have a hard time reading ,so I pretty much just take everything through audio literally... I'm a illiterate and they don't really have that much time in class to support me. So people like you who going do this sort of content. It helps me along way and also plenty of other people I'm sure. I hope you have a great and fantastic day you're doing a great job helping everybody being formed....

[@MedicosisPerfectionalis]

Thank you so much 😊 This touches my heart!

[@omaryousef4907]

thanx alot....Its an amazing video

[@MedicosisPerfectionalis]

My pleasure 😇

[@MANJITSINGH-jr7pp]

🥰🥰😍thanku so much sir

[@JOKKER450]

Very interesting video, thank you ! I have a question though , is there a difference between Sp02 and SaO2 ?

[@collintibbitts]

I HAVE THE SAME QUESTION

[@chad1405]

As far as I understand, we say SpO2 when we use non-invasive methods of haemoglobin saturation methods (pulse oximetry) and we use SaO2 with invasive methods (I guess, ABG and similar stuff). I would guess that SaO2 is a bit more accurate but I see these things being used interchangeably.

[@anushreejagtap6163]

SaO2 is the same thing as O2Sat. SaO2 is measured when arterial blood is drawn whereas O2Sat is measured using a pulse oximeter so it's not as accurate. Sp02 is the same thing as O2Sat - they're interchangeable :)

[@Sidtube10]

@@anushreejagtap6163 Does measuring the dissolved oxygen in blood provide any information of value? Any correlation with oxygen saturation? Thanks

[@MrsBridgette2012]

I have had nitrogen put in my tires because it keeps the low tire pressure warning light from popping up every time the weather gets cooler. No fun traveling and having to deal with low tire pressure ⚠️ warning light. Don’t have that problem with nitrogen in my tires.

[@brendagil9117]

OMG, I understand , thank you.

[@MedicosisPerfectionalis]

My pleasure 😇

[@aliahmedqasim9324]

man i love you so much فدوة اروح لك

[@reemna117]

Why SaO2 and O2HgB are not equal if both means the percentage of Hgb that is carrying O2

[@ngkaijian6545]

Hello, great video as always. I have a question though, may I know whats the difference between paO2 and pO2?

[@MedicosisPerfectionalis]

They are the same. No difference as long as it’s a small “a”.

[@ngkaijian6545]

@@MedicosisPerfectionalis Ahh i see. Okay thank you so much!

[@MedicosisPerfectionalis]

My pleasure 😇

[@ambereenalam8980]

Excellent !

[@MedicosisPerfectionalis]

Thank you so much 😊

[@timwebb078]

Well done, thank you

[@MedicosisPerfectionalis]

My pleasure!

[@brandiehenson6809]

To confirm anything you would need more tests . If his oxgen sat 02 is low and his pa 02 is high there could be a few things wrong. It could be a sign of infection, heart condition like a heart mermor,medication reaction allergic, flu ,really many thing there is not a perfect diagnose without more test for a real patient . You would need allergy checklist ,vitals, urine check for high protein ,blood panels for lab anisyise ...

[@MedicosisPerfectionalis]

That’s true of everything on any exam.

[@amyacquavella-geddes3250]

It’s High lvls of MetHb...

[@alien3143]

Ans to the case?

[@irszgatti]

helping me become a better runner

[@MedicosisPerfectionalis]

👍👍

[@unniroshan]

Hi... Can anyone explain why hemoglobin concentration is considered in O2 content when already SaO2 is there? (Isn't SaO2 = O2 on Hb??)

[@MedicosisPerfectionalis]

To insure that passengers are being transported to their destination, you need to take into consideration: a. the number of taxi cabs available (Hemoglobin concentration or Hb), and b. The occupancy of each taxi cab, meaning whether each car is fully occupied or not (Hemoglobin saturation or SaO2). Having good saturation per car, but less total card available means that less passengers overall will make it to their destination (i.e. anemia).

[@unniroshan]

@@MedicosisPerfectionalis oh got it...thank u so much for simplifying the concept!! Love from ❤️🇮🇳

[@muralidharanpandian1926]

If hemoglobin is low obviously saturation also shd be low right?? Please explain

[@MedicosisPerfectionalis]

Not necessarily. Think about hemoglobin particles as taxi 🚕 cars. Each one has 4 seats for passengers (saturation). I can have low number of taxis, but every one is fully saturated. Hope it helps!

[@user-mn4gd4yb3o]

JUSTTTTTT AMAZINGGGGGGGGGGGGG. THANKKKKKKKKKK YOU

[@MedicosisPerfectionalis]

You’re very welcome! Would you please help me by sharing my videos with others?

[@ndinelagosamuel4189]

Which video has the answer? I’m looking for the next video

[@riteshchaurasia4953]

In anemia since hb is low,then why not spo2..in lung spo2 increase and pao2 also and tissue viceversa ,how spo2 and pao2 are connected..

[@anupamdev6574]

In anemia there is low hb concentration in blood but there is no change in functioning of that hb which means their O2 Saturday will be normal theoretically. So it shows normal spo2. But actual oxygen carrying capacity of blood decreased

[@usamedstudent2023]

thank you so much

[@MedicosisPerfectionalis]

My pleasure!

[@poopfart65]

When I am at rest my SPo2% is 100 according to my pulse oximeter.

[@davidadetomiwa6948]

Brooooo you're the best 👍👍👍👍👍👍👍

[@MedicosisPerfectionalis]

Thank you 🙏

[@BeastFrom923]

lmao.. "he's a hero". you're awesome man

[@MedicosisPerfectionalis]

Thank you!

[@BeastFrom923]

@@MedicosisPerfectionalis your videos are helping me through nursing school.

[@MedicosisPerfectionalis]

Awesome 👏 Good luck 🍀

[@nathantjenkins93]

does hematocrit percentage determine the oxygen carrying capacity? or is it the hemoglobin itself?

[@MedicosisPerfectionalis]

The hemoglobin itself. But, please remember that when the patient has anemia, RBC count, hemoglobin concentratio, and hematocrit may all be decreased. So, there are many factors at play

[@nathantjenkins93]

Medicosis Perfectionalis so the amount of RBCs wouldn’t contribute to the capacity of carried oxygen? And I understand, this is just something that has confused me for so long.

[@MedicosisPerfectionalis]

What contributes to the oxygen carrying capacity is: RBC mass (Hgb, Hct, RBC count) and Hemoglobin saturation. All these things need to be normal for an optimum oxygen carrying capacity.

[@marijoona]

This means that the PaO2 we say is just because of the dissolved oxygen in the plasma right?

[@MedicosisPerfectionalis]

Yes! The plasma of the arterial blood.

[@marijoona]

@@MedicosisPerfectionalis Thank you so much!!

[@MedicosisPerfectionalis]

My pleasure 😇

[@rubyrios250]

Omg 👌thank you ,!!

[@MedicosisPerfectionalis]

My pleasure 😇

[@MedicosisPerfectionalis]

Please share!

[@user-pm3sn2zm5k]

you are amazing, funny at the same time

[@MedicosisPerfectionalis]

Thank you so much!

[@hello-un8gh]

4:49 thank you!! I don't get this equasion... How can I add values with different units?

[@MedicosisPerfectionalis]

It’s not a mathematical equation. It’s intended only to show the parameters and factors that affect the result.

[@hello-un8gh]

​@@MedicosisPerfectionalis thank you!

[@HodaWali]

Hi, thank u for video When we say SaO2 is 97 percent do we consider one hemoglobin that should be attached to 4 O2 molecules Or We mean out of whole amount of Hb that we have in blood what percentage of it is attached to O2 ? Please answer my question im so confused.

[@MedicosisPerfectionalis]

The whole amount of hemoglobin and the whole amount of oxygen on the hemoglobin averaged out.

[@HodaWali]

So do u mean when we answer the question what is SaO2 ? And I answer for instance 97 percent I mean from my 100 percent hemoglobin 97 percent of them are saturated with O2 And also somehow my one molecule of Hb is saturated by 4 O2 molecules Cuz u said the whole amount of Hb and the whole amount of O2 on hemoglobin so we answer both of them simul taneously?

[@HodaWali]

U siad the whole amount of oxygen The whole amount of oxygen on one Hb (which is 4) or the whole amount if oxygen on all hemoglobin in blood?

[@gr-6889]

Thank you

[@MedicosisPerfectionalis]

My pleasure 😇

[@1310sak3]

Does 98% oxygen saturation mean that 98% of hemoglobin has four O2 bound to it, and 2% of hemoglobin has zero O2 bound? Or is it more like ~91% of hemoglobin has four O2 bound and 9% of hemoglobin has only three O2 bound?

[@medicine-mutasim]

Thanks

[@MedicosisPerfectionalis]

You’re always welcome!

[@modyashraf8992]

You grow up in Egypt wow 😳 i.m curious to know more about you

[@dimysimplice]

Thks. Good informations. Jesus bless you

[@MedicosisPerfectionalis]

You too...Thank you:)

[@amandawillard2788]

Sounds like you need to change the batteries in your smoke detector in the background.....lol

[@Cc-pq1ez]

☺☺☺ thanks!

[@MedicosisPerfectionalis]

You’re very welcome 😊

[@studymedicineofficial]

Thanks 👍

[@MedicosisPerfectionalis]

My pleasure!

[@hajir.h.30]

Where is the correct answer for your question?

[@amra564]

There’s difference in chemistry but I couldn’t care less 😂😂😂👍🏼 yeah me too great video thank u alooot❤️

[@MedicosisPerfectionalis]

Thank you 😊

[@Nora-dx9cy]

واو مصري… عشان كذا تفهم وتضحك وممتع it makes sense

[@ahmeddesouqi8462]

انت جامد ❤❤❤❤

[@zemara2344]

Great explanation, I'm Egyptian too hahaa

[@MedicosisPerfectionalis]

Welcome to the tribe 🤗

[@Nora-dx9cy]

THANKS

[@MedicosisPerfectionalis]

My pleasure 😇

[@lnk3503]

60ghz causes the blood to be unable to absorb oxygen

[@bhuvanahoney9273]

Nice vedio

[@MedicosisPerfectionalis]

Thank you 😊

[@andra3672]

I was gonna guess carbon monoxide poisoning but he'd have a cherry red color instead (and would probably be dead) so i'm gonna guess methemoglobinemia?