I was in surgery earlier and remember when the nurse put injected anesthesia and something else through the IV and I could feel the liquid push itself into my vein and it felt like my vein in my hand to elbow would explode.
That got me thinking, how does my body intake so much liquid like the full IV bag without exploding or peeing on the operating table while I’m knocked out.
In: Biology
In addition to the other answers. If the nurse needs to inject with a syringe directly into the IV connection there are guidelines for how quickly they should push in that plunger.
A syringe with just a bit of propofol-ketamine might go in rather quickly and send you to la la land. With a bigger amount of fluid they might push a bit, count to two, push a bit more, etc.
I get hydrocortisone every six weeks and while most nurses hang a tiny IV bag to drip a few have just put it in a syringe and injected it very slowly into the IV while counting with the second hand on their watch.
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