Aspiration

*I found this on another board and thought this could be useful for newbies or those that just don't know how to aspirate.

First, you must understand that the blood circulatory system is under pressure at all times within the vessels...so minimal vaccum should cause a draw effect.

Having said that, you must also realize that if you create too big of a vaccum with a syringe inside the vein, you will collapse the vein as you will suck the vein wall right against the bevel of the syringe and that will create a plunger effect.

NOW...since you know the above, now we can start explaining how to aspirate...

What one should do is either just use their finger and flick the plunger or push gently upwards (move the plunger no more than a millimeter) this vaccum draw should create a vaccum effect that you will end up with a fair bit of blood in the syringe already....If you pull to hard and too fast, you will just end up with no blood in the syringe because you created the plunger effect mentioned above...and youll just inject into the blood vessel.

very good info for the newbies out there... don't be afraid to ask questions if you're new, we're all here to help each other.

WOW! This goes to show you no matter how much you think you know if you pay attention you learn something new everyday. Great post vertigorocks! good job bud, I would have never known this.

you silly, ticklish little monkey you

very true...bump it up for the Newbies...Gotta aspirate regardless...

thanks elmo, i knew it would be useful for everyone. Bump for newbies.

good peice of info here. bump

This is a sticky on another board and I really think this should be one for our board as well so if anyone has a question its right there at the top of the forum for them.