Common misunderstanding about air in syringe

[PurplePatriot]

For those of you worried about injecting air in your system through the syringe read this. Your most likely not injecting anything.

This is very simple to understand, first of all when you are aspirating like i hope you all are doing, it is not air you are seeing when you pull back on the plunger it is a vacuum aka empty space. Same thing when you are drawing from a vial, if you pull the syringe back too fast and bubbles show up the majority of them are not more than empty space either.

If you can logically think about where the bubbles came from you can distinguish whether they are actually air or just a vacuum. You cannot draw air out of a liquid or out of your body as neither contain air.

[guest589745]

Good way of explaining it.

[NotSmall]

Sorry dude but I think you may be wrong, when you pull back on the plunger you create a very low pressure within the syringe causing any minute air bubbles previously too small to be seen to expand and become visible, in the case of aspirating it is the small amount of air within the needle itself expanding into the syringe.

[guest589745]

OK, well Im gonna just try to keep em to a minimum regardless lol.

[loki_is_a_god]

another thing.....dont be worried anyway it takes...3ccs of air to stop your heart.....i have injected air bubbles.....

[QuieTSToRM33]

another thing.....dont be worried anyway it takes...3ccs of air to stop your heart.....i have injected air bubbles.....

ill stick to minimum/no bubbles

[manc]

i think the air is either already in the needle or more likley that while aspirating a small bit of air gets drawn in where the needle attaches the syringe???

[Undecided09]

ok well either way, you need a syringe full of air injected into a major vein for it to hurt you, so basically you would have to do it on purpose...