In this video, we look at cardiac output. First I discuss what is meant by heart rate and by stroke volume. We then look at how to calculate cardiac output including by using an ECG trace. Finally, I show you how to rearrange the equation for cardiac output.
Image credits:
Diagram of heart (modified)
https://commons.wikimedia.org/wiki/File:Heart_valves_NIH.jpg
National Heart Lung and Blood Institute (NIH), Public domain, via Wikimedia Commons
Hi sir, I am doing the AQA spec and was wondering if I need to know about the ECG traces? I'm confused as your previous video said it was only for OCR/Edexcel but the spec says we need to be able to "interpret data for a variety of graphs, eg explain electrocardiogram traces" what would you suggest?
Also thanks for the videos, they are an enormous help!
@umairaali1952 Says:
thanks pal
@Hannah-ox2ks Says:
Hi sir, could you upload videos on biodiversity and conservation under topic 4, for Edexcel international AS level syllabus
@HNLTUTORS Says:
These videos have been such a help for my students. Thank you!
@renatostudying Says:
hi sir, just wondering if youll get around to a-level physics after you finish chemistry? hoping i can use your videos after i finish secondary school.
@MakindoLearning Says:
Amazing. I teach medical students and this is so helpful nowadays.
@prodmsbby Says:
Freesciencelessons I love you! Thanks to your lessons I did well througout the 2019 mocks and school year and got my science gcse 6,5 in 2020 (predicted).
@idontgetthejoke4393 Says:
hello sir
your videos are extremely helpful, and is the sole reason that I am doing well in the three sciences (GCSE)
I love your textbooks and your videos, and i recently achieved a 9 on my physics end-of-topic test (atomic structure and radioactivity) thanks to your videos
My School follows the OCR 21st Century Science specification, and although your videos have worked amazingly so far, is watching your videos OK for OCR GCSE papers. there's only around 70 days left until the start of my GCSE's, so I'd appreciate any advice.
Thanks you
@Ben-oh3gb Says:
Hi Shaun, I know this is a big ask but will you be doing A level physics anytime soon? You single handedly got me 9’s in science and it seems a shame to have to leave your videos behind. Best wishes.
@astonishmentlive1086 Says:
Hi sir, are you going to be uploading more bio a level videos soon?
@dyanadarwish888 Says:
hello sir can you help me get a 9 in my combined science for my mocks in march or April thank you for your videos
@alishanziro6011 Says:
thx sir, but why are the number on the screen not adding up when I try to calculate them on screen
@haidersher6865 Says:
OMG OLD INTRO IS BACK!!! I missed this intro song so much. Ur lessons are amazing and ur so memorable. Thank you so much for everything you do <3
@alixcsxp8390 Says:
Legend, should be knighted.
@stxrmzttv Says:
i love you
@KaFullah Says:
hello sir , I was wondering when will you finish all the content for A- level Biology ?
@TateSpeech._ Says:
Hello sir I do biology a level and have my exam tommorow what tips do you recommend for revision and last minute tips.
@loopylululand3641 Says:
I have my biology mock tomorrow, thank you for your help!
@redsky6630 Says:
Hello sir, thank you very much for the amazing resources for A-Level Biology and A-Level Chemistry, it has allowed me to visualise the content enjoy it a lot. When will the videos for A-Level Biology Communicable Diseases / Biodiversity / Classification & Evolution coming out?
@zane_681 Says:
Hello freesciencelessons, I have my triple biology GCSE mock tomorrow and I have just finished watching all of your videos for paper 2. I am aiming for a grade 9 so please can you wish me good luck because that will make me very happy. I love your videos and they are very helpful. 👍
@juventusfan4873 Says:
hello shaun, i was wondering how should i revise to get 7s for gcse combined science as you know the gcse 2023 exams are coming and i was wondering what i should be doing to achieve those top grades? i have recently been switched from foundation to higher so how would you recommend me to learn the higher content and go through the foundation content?
@thebluemoose8190 Says:
Bro needs a knighthood for his dedication to education.
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