Hey, i have been searching around for this but i could find a clear answer..
I know that once the needle is in we should aspirate before injecting to make sure the pin is not in a vein..
i read somewhere talking about after aspirating if the pin is in a vein we shouldnt push it deeper or out away from the vein then injecting because theres still a chance the oil would still get into the vein but taking the whole pin out is a better choice..
But here is the question, what if the pin passes thru then out a vein without us knowing it, then we aspirate and there is no blood, so after injecting is there a chance for the oil to get into the vein?