
Originally Posted by
goldenear
I've been using the air-lock injection technique for every inject I've ever done (several years worth). It is a universally accepted medical procedure followed throughout the world. I prefer it over z-track because there is less surrounding tissue disruption (= less overall discomfort). Z-track is probably better for larger volumes, though (>3 cc's).
Regarding injecting air into a vein and dying...I remember researching this subject and found a brief write-up from a coroner specializing in forensics who helps law enforcement solve difficult homocide cases. He said it would take 100's of cc's of air injected directly into a large vein to be lethal. He actually detailed a case where a medical doctor murdered his wife this way. I found it particularly interesting when he remarked how difficult it would be for a non-medical professional to kill someone this way because the victim would have to permit the killer to continue emptying 10cc syringes full of air into the same injection point (meaning there would have to be some form of trust involved).