PEA: pulseless electrical activity. But, when reading the article, it sounds like his body may have gone into hypovolemic shock. Long story short: When the body goes into systemic shock, it will vasoconstrict to pull all the blood to the vital organs, so your heart could still be beating but not have the pressure/volume to be able to detect a pulse.
How can you have a heartbeat but no pulse? Aren’t those the same thing? 🤨
Heart can continue to beat but if there’s nothing to pump through the blood vessels, you won’t feel a pulse.
Electrical current firing in the heart can be picked up by EKG, but if there is no blood left in the tube you have no blood pressure.
Wouldn’t it run out of oxygen?
Eventually, but it’s a muscle. Salt applied to freshly butchered meat will spasm because it’s still muscles with sugars left to burn.
Same thing like if someone gets decapitated. The heart might still pump for a while and shoot blood out everywhere. Doesn’t mean the person of still alive.