Before doctors on TV inject someone they flick the needle is this nessesery and if so why . Does it actually happen in real life
In: Biology
Fun fact: the amount of air (injected directly into the bloodstream and not fat or muscle) it would require to kill you is around 50-75 cc’s depending on your size, because this is about the volume of your left ventricle. If the LV receives nothing but air it will spasm and you’ll go into an abnormal cardiac rhythm like VF and die.
Also, flicking the syringe is really inefficient. If you draw something up quickly and there are a lot of small bubbles in it you should suck in a bit more of an air bubble and rock the needle up and down slowly so that the large bubble collects all the small ones, and then you simply expel the large bubble and you’re all airtight and ready to go.
Latest Answers