heartlaboratory: Which is the lowest heart rate to sustain consciousness? It’s really hard to find a
heartlaboratory: Which is the lowest heart rate to sustain consciousness? It’s really hard to find an answer… What creates blood pressure is clearly the systole and globally we can define blood pressure as: (cardiac output x periferal vascular resistance) with the first one as (heart rate x stroke volume). In the case the heart rate becomes too slow there will be an important BP drop between the two beats overcoming compensation mechanisms and this event will make the patient to loose consciousness. A normal heart rate for an average person is between 60 - 100 bpm so it’s reasonable to consider that under 60 bpm that average person should start to experience symptoms (at least on a standing or sitting position). Searching around I found that, with huge differences between individuals, the slowest possible heart rate before fainting should be considered to lie between 25 to 40 bpm.. … … … … … … …To realize these artworks is a huge effort to me, if you like them you can help me make more by joining here:https://www.patreon.com/HeartLab It’s just a coffee for you but you can make the difference for me! Correct that it’s hard to find an answer. I’ve stayed conscious (very much out of it, but still conscious) at about 30 bpm. I was laying down, so that may have played a part in me still being conscious. -- source link