The mechanism of death or injury depends on the size of the air embolus the bubble and where it lodges in the body. One way is akin to vapor lock, an automotive problem in the beaters of my youth. If vapor developed in the fuel line, the engine died. If an air bubble gets into a blood vessel, so might you. I'll explain that shortly, but first we need to understand how air gets into the blood in the first place.
We've discussed some bizarre routes here in the past — for example, by blowing into the vagina of a pregnant woman during oral sex. More common is air entering accidentally via injection or IV tube, or when blood vessels are cut during surgery. Another possibility arises during ascent after scuba diving, where an increase in air volume in the lungs pushes tiny bubbles of air into the bloodstream that expand as you rise.
Here we need to distinguish between little bubbles and big ones, because they do damage in different ways. Small bubbles can block capillaries in vital organs, most critically the brain, causing anything from pain and inflammation to neurological damage and paralysis. A small bubble impedes blood flow the same way a solid obstruction would — the bubble's surface tension relative to its size is too great for the force of blood to break it up or shove it along.
Probably not, although see below. A big bubble, on the other hand, gets us into the vapor lock scenario. Your heart, like the fuel pump in an old car cars with modern fuel injection work differently , is a simple mechanical device. In ordinary operation, its contracting chambers squeeze the blood out and force it through the circulatory system.
All is well. Now imagine a massive air embolus shows up and your heart starts squeezing on that. There's nothing to get any purchase on; the air just compresses. Blood flow stops, and eventually so does your heart. Madagascar is well known primarily for its big walls, but underneath the surface, there's a world of untapped potential, as the pair endeavour to find out Do you die if you are injected with air? New Topic Reply to Topic. This topic has been archived, and won't accept reply postings.
The reason i ask is i currently have a cannula fitted to help deal with a rather nasty elbow infection i have picked whilst climbing in the lakes.
Any way whilst at the hospital having my daily dose of drugs i noticed a lot of air in the syringe, and then remember my Dad telling me i should always makes sure that there is no air in the syringe before injecting the animals on the farm as it will kill them.
I also seem to think i have heard this somewhere before. I seem to think that the explanation was the air would get trapped in your heart, like an air lock in a mechanical pump Well before i knew it i could see the air disappear in to me!!!!!
For a moment thinking oh well here we go off to the bright light ,well actually even now three hours later half excpecting to keel over.
Strangely though not having the courage to ask the nurse , male by the way so not distracted and already having asked a million stupid questions. So is this true or have i just imagined it all? By the way if i dont respond I have probally answered my own question , so call me an ambulance and send it to Meltham.
Slighlty nervous, Dan. Timmd 31 Aug In reply to DANNYdjb: If air goes into flesh it just hurts a little bit, if I inject a little bit of air along with my insulin as a type 1 diabetic it doesn't kill me.
Hope to help. A couple of mls in your elbow is neither here nor there. One of them electric tyre pumps on the other hand In reply to DANNYdjb: Ok here goes the capillary bed in the lungs filters out air bubbles from blood supplied from veins.
On the other hand if it's a artery that goes to the heart and you'd be in deep smelly stuff in seconds. Hope that clears that up my wife's a g. The nurse should get rid of all the air in the syringe. This can be tricky as some antibiotics are effervescent by nature, when reconstituted. Odd bubbles aren't going to kill you though. I was told that it takes 50mls of air to kill you, that is a lot and can't be done accidentally. Don't quote me on this though.
In reply to stonemaster: best put the pump away then. Mr Rushby's suggestion. In reply to waterbaby: the anti biotic did look rather bubbly.
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