[quote]bushidobadboy wrote:
Can we just clear something up here guys…
Veins are not under pressure, arteries/arterioles are.
So, if blood comes squirting or gushing out, then it’s not a vein you hit, but a pressure vessel, i.e arteriole.
Bushy[/quote]
I disagree.
Veins are under pressure, just not as much pressure as arteries.
Anyways, arteries are contained in the inner aspects of your limbs not the outer where the injection sights are located.
what happened is that you nicked a vessel when you initially inserted the needle - closer to the surface. The needle was then sunk deeper down and that is were aspiration occured.
During the time it took to inject you bleed into the area where the needle was, which created pressure. Additionally more pressure comes from the pocket of oil you injected.
When you pull the needle out the pressue is able to be releaved via the needle hole, and you get a nice volcano of blood and oil.
moral of the story: always have a gauze pad ready to apply pressure to the site as soon as you remove the needle.
z-tracking will help to - that’s pulling the skin to the side prior to injecting, so that when you pull the needle out following, the hole in the skin is located somewhere else from the hole in the muscle, thus creating more of a natural seal.
To further help, alot of times say if I am injecting in a quad, I will bed the leg as soon as I pull then needle out, or if it is a delt I will raise me are following injection - that moves them muscle and helps to seal the injection in and minimize bleeding as well.