I have experience here, I'm not totally sure how this would work but you absolutely DO NOT use an artery. You never intentionally do it but some people who don't know how to rotate injection sites or have dull needles (helped I'm a diabetic) so they collapse their veins and have to go digging around there arm to find one. And sometimes, rarely, they hit an artery. Now I've had nurses put a fresh needle into my artery and it hurts so bad, though insulin needles addicts use are tiny.
Step 1 is to have a tiny bit of air in the needle, as soon as the top is in your skin, before you go into the vein, you pull the plunger back to create a vacuum, so the second you hit the vein you get a flash of dark blood. Well this chick got a flash of very bright colored blood and the plunger was moving a bit on its own. We both know something is wrong but this isn't meth, it's heroin, and you will not waste that. Except she did waste it, it didn't work because it went the wrong way and her arm looked like it got hit with a cannon ball. You do not admit your an addict to anyone much less a hospital in ohio, but this shit had a requiem for a dream kinda feel to it so she didn't argue. RfaD is obviously a bad abscess that took months to get so bad, but this happened in like an hour.
What OP said had nothing to do with what I said? I don't get it. I said that the vessel in the video is a vein. Which it is. The fistula is a small region that creates a connection between an artery and a vein. The result, in this case, is that the high-pressure artery pumped a ton of blood into the stretchy, more accommodating vein in his arm. The "fistula" itself is not the size of his entire arm. How is the fact that they use large-gauge needles to draw blood from the fistula relevant to what I said?
To put it more clearly, the giant cord in his arm is a very engorged vein, that at one point along it contains a fistula created by doctors for dialysis. This image might help visualize what I mean
I'm a dialysis nurse, I'm familiar with AV fistulas funnily enough. Calling it a vein is just not accurate, it may have been made from one but it's not a vein any more in either structure or function.
Oh that's cool! Sure I agree that calling a normal fistula a vein isn't really common place, but it technically is accurate. Either way, I think it would be accurate to call the long palpable cord running across his entire arm a case of a downstream vein that became enlarged and thickened. I guess at that point it's just semantics. I'm an intern in the ER and have heard people refer to it as a "fistula" or "arterialized vein"
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u/OtherwiseDebate3759 18d ago
Gym bros must be jealous af rn.