Preload and Afterload Animation (What do they mean? How to measure) 

For 2 years at medschool, I didn't get the idea of preload and afterload... now I get it in 7 minutes thank you soooo much

When someone explains it with simplicity you know they have a great depth and breadth of knowledge...thank you

JUST WATCHED THIS BEFORE MY TEST AND GOT THIS QUESTION RIGHT! YOU ARE AWESOME.

You just made life so much easier for everyone interested in heart physiology. Thank you so much for simplifying everything and keep these great videos rolling!

omg this made everything easier to understand about pre/after load that every single video here took forever to explain n none of em explained better like this....so short and clear THANK YOU

everyone else had so much unnecessary details. you went straight to the point. LOVED IT!!!!!!

Preload and Afterload make so much more sense after watching this video!! Thank you so much!

One of the BEST (and short) explanations of preload and afterload - thank you!

THANK YOU SO MUCH!! I've been watching a lot of videos on this topic but this your video made the concept SOOO much clearer.

Thank you so much! I'm really grateful! This is the second weekend i'm sitting with cardiac regulation and everything just clicked thanks to you! You just earned a sub from me!

Oh my gosh... THANK YOU! I have read books, lecture notes, watched other videos... and could not grasp afterload! Now I get it!

I have gone through a series of videos trying to understand this concept and you just blew them all out of the water. Thank you for simplifying this and making it so easy to understand and remember.

That was the best I have ever listened to. Thank you.

this made so much more sense than anything i had been watching thank you!!!

Just chiming in to tell you how helpful this was! Reviewing for an A&P II exam and the book wasn't helping in the least. Thank you for making this video! You're my hero :D

This was super helpful! Loved how you "dumbed" it down

Simple enough, with an excelling pacing of information to learn/understand it and not be overwhelmed, not to slow as to be boring.

thank you! keep your eyes peeled more to come!

Saw 4 videos before this, this explained very well. Thanks a lot. May god bless you !!!

I always go back to this video. Great understanding!!!

thanks man. its now clear as! u explained it really well. thanks a million

Great video, quick and easy way to clear this up. Thanks!

Thank you SO much! I finally understand it! I was running away from it but I knew that I needed to buckle down and figure it out so I can fully understand the cardiac diseases I have been learning about in school. Thank you again!

the best explanation ever!! simple and easy to understand.. thank you very much.

Thank you so much! I could never wrap my mind around afterload, but I finally get it!

That made so much sense. Thank you! This was really confusing before.

Thanks this was extremely helpful, had been confused about the two for almost a week now.

Very easy to understand for old preop RN for perianesthesia certifications exam! Thanks John!

I have been struggling with this concept in my Patho class for 3 lectures. You just explained this so clearly in 7 minutes! Thank you!!!!

Thank you so much, you're the best. So many videos out there and teachers but you're really greay

Really appreciate the picture to go with the words. Some of us need to see the picture and the movement in it to understand. Well explained!

U did a great job, its so simple to understand the concept, Now I won't forget it for whole life.....Thanks a lot

I REALLY UNDERSTAND FROM THIS VIDEO .. CLEAR AND SUMMERIZE EVERYTHING, THANKS

This video helpt me so much!! Thank you very much. I kept struggeling with these words. After the way you explained it, it makes sence!

I watched lots of videos explaining the preload and afterload and yours was the best!!!! How simple it is

EXCELLENT. Made easy to understand. Thank you

GREAT EXPLANATION- thank you! I bought your books and use the website too! Keep up the good work.

Thank you. You've explained it really well !

Today, I finally understood what these acronyms mean. Wow! Excellent presentation

Thank- you so much, i am sitting my nursing medical paper again, wish i had searched this video four months ago, this is great explanation so simple and easy

Thank you!!!! This was a good intro video and it was simple, understandable, and you made it easier for me to learn

Awesome video, straight and to the point. Thank you for the explanation.

Thank you. You made it super easy to understand!!

Thank you. This was very well explained and most helpful.

thank you! I had a real hard time understanding this in class. Drawing it out like this helps so much. Thanks once again!

Finaly I happen to understand. It's not written anywhere this clear. thank you

Omg. So simple so simple so simple. Thank you so much for this video!!

Thanks for helping me to finally understand preload and afterload!

This is awesome. Easiest to understand.

I finally understand these terms, just the way you simply explained them. Thanks!!!

Your video helped a lot! Thanks!

Thank you! So simple and made easy to understand.

Clear as day! thank you man!

Thank you so much!! You made it so simple ❤

thank you sir, it was very simple and up to the mark

Amazing explanation thank you so much!!!

WOW thank you so much, this video was so helpful.

So well done !

Thank you for clarifying the preload and after load for me. It really helps!

Thanks for this helpful explanation 👍🏾

I'm so thankful that I came across this video, preload and afterload seemed to be so hard to understand! Thank you!

I was in tears trying to understand this until I found this video. Thank you❤️

Thanks this is the best explanation ever

This was PERFECT! Thank you so much!

Thank you so much! Awesome video.

YOU SAVED MY LIFE

Thank you. Very useful and straight forward. Cheers.

I wish my professors in university were this good at explaining. Thanks, this helped a ton!

No one explained this when I was in med school. We had to figure it out on our own, AND, trust me, we had the embarrasment of having to ask our colleagues this concept of fluid mechanics. Thank you

Omg why so fancy definitions during lecture. Its like its a set definition for describing these two terms. You made it ssssoooo much clear just by defining them from exactly what they do. Thank you!!!

Now, I understand preload and afterload.....thank you!!!😆😉😊

This was awesome. So easy!!!!! Thank you

so clear, thanks!

amazing explanation. thank you

Now I understand this stuff clearly! Thank you!!!

This helps alot. Even as an EMT, I had five preload and afterload centered questions on my NREMT. They were difficult and centered around visable signs and symptoms and whether increased preload, decreased preload, increased afterload, or decreased afterload were responsible for the condition in question. Was able to work my way through them. Passed NREMT in mininum 70 questions, but our book from training didn't explain this subject as well as you did. I will suggest this for people I know going through EMT classes currently. Thanks!

Wonderful Explaination.

thanks millions of time !!!

you saved me i was so confused about these concepts .... thaaaaaaaaankssss

Good Explanation .. Keep it UP!

Thank you so much for clarifying.

I am learning on youtube...that is best

THANK YOU You made it very easy to understand

Thank you, this finally makes sense.

Amazing video!! You made it so simple 🤗

Thank you so much.... Couldn't understand this concept at all through the text book. This was so simple to understand. Thanks again !! 🙂

short, sweet, and concise. sweet dude thanks

thankyou , your explanation its so very clearly 😁

you did an amazing job, thank you.

Thank you this was so helpful!!!!

very simple thank you!

Thank you! That was very clear!

best explanation! thank you

it was a short video, and an easy and a big understanding one. thannk u.

Thank you bro!!! its really very effective!!!

very simple and sooo easy to understand thank you so much!!!!

Great video!

omg thank you so much. you explained it so easy. preload=volume, afterload=pressure

Amazing content and excellently conveyed!

Thank you for the clip it was so easy to understand.