The Physiology of Cardiac Output

[karamalhasan]

Thank you!

[danders3]

While those concepts (SRxSV, contractility, preload, afterload) are the conventional textbook descriptions, they don't actually explain what determines cardiac output. In most normal, physiologic states, systemic factors -- not cardiac factors -- are the primary determinants of cardiac output/circulation rate: Doubling the stoke rate will roughly halve the stroke volume, and output is not affected. See the "Determinants of Cardiac Output" video on YouTube for a demonstration/explanation.

[lovelyaley]

I'm in my last semester of nursing school and this was very helpful! I wish our books broke it down like this, thank you for making this video and p.s. it sounds like your tea is ready ;)

[TheBlabar123]

virtualmed stundent,

You're video really helped me with my university assignment and was hoping to reference you. however, its not advisable to quote a youtube video. could you give me the name of the doctor in the video (not sure if its yourself) and do you perhaps have this video on another site?

[leudne26]

That was a great video, very symple , very direct and easy to understand, great job!

[22joanna22]

Thank u thank u! Studying for PTA licensure exam and didn't learn this stuff in school u make it so easy to understand!

[Laurenbabyyxo]

Was there a washing machine running while filming this video?

[anooogy]

Loved your way.. easy, smooth, and entertaining!! 

[t1e1b1]

the background noise is very distracting

[gray16888]

this help me, thanks.

[jafer439]

thank you ..you did it in simple way...please send your mail id please

[2007goodness]

This really Helped Thank you!!!

[aberch15]

EDV is the amount of blood once the contraction has ended... so after contraction there is usually about 60ml of blood left.. that would be the EDV not the amount of blood BEFORE the heart contracts......

[virtualmedstudent]

@aberch15 The EDV refers to the amount of blood in the heart at the end of diastole. Therefore this is the point at which the left ventricle has the most amount of blood in it. End systolic volume (ESV) is the amount of blood in the ventricle once systole has ended; this is this point when the left ventricle has the least amount of blood in it.

[bdroney123]

Thanks!

[korilizify]

I am also a nursing student and this helped me so much! Thank you for posting this!

[rjp0410]

great video except the squealing in the background! It's distracting. 

[jilleeeeee]

I'm a nursing student...this was simple, clear and helped a lot! Thanks!

[NiggaPopzJ]

@jilleeeeee totally agree!!

[sessa34607]

Thanks you that cleared up alot for me

[sessa34607]

thank *

[havok1919]

buddys runnin a centrifuge in the back

[Abominatrix650]

@havok1919 What's a Centrifuge?

[SpotsLinesAndDots]

@havok1919 or a washing machine?

[booth1906]

@havok1919 he's either running a centrifuge or boiling some tea...

[respiratorystu]

So simple when watching this video. Thank you!

[TheChalus]

excellent!!!nice and clear, straight to the point. thank you!

[kninny]

great info really helpful , but turn off the kettle at the back!

[annacgore]

omg is that something spinning down in the background haha excellent

[nalgel326]

Your explanation is concise and informative. Helpful. Thanks. 

[melrildy]

Very simple and to the point....but very helpful as well...Thanks a lot!!!

[czarina007]

Short, sweet, simple, and to the point.

[TeshaBeltz]

super helpful thanks so much!

[levana22]

any one else notice, beside me,a very high pitch sound (coming from the back ground) it gets faster and then slows down. good movie, but the sound is distracting

[JasonJarred]

@levana22 Think the kettle was boiling!

[bravone1]

excellent straight to the point

[lapczyns]

Awesome! ty

[fender550]

Thanks so much for this simple explanation! Needed this simplicity right before a cardiovascular therapeutics test