Aspirate

[romeodun]

*Aspirate the syringe - pull back slightly on the plunger - you will see one of two things. (A). You will see a couple small air bubbles that when you stop applying pressure upward on the plunger will readily go back into the muscle or (B). Droplets of blood. (A) being the obviously favorable one. If there is blood you must pull out, switch needles and start over.

if you get droplets of blood does that mean you have hit a vein?

[MuscleScience]

yes sir

[MrMe]

Most likely yes. If its still hard to asparate and you get bubles, you might of just nicked a vein on the way to your destination and thats not the end of the world. If you aspirate and blood flows in the syringe easily, stop and find another spot once you change the pin.