I agree - it's not something that can be described over the 'net - take the phlebotomy class, it's like a few weeks long and you will learn all kinds of tricks.. there was a really good picture-walk-thru at, um, curesnotwars? It's gone now, if anyone knows where it moved to, or has it archived, mail me..
But yeah, lots of good advice given.. IMO 30mg morphine is a rather large IV dose - it's not dangerous, but for the opiate virgin, it's a bit much.. YMMV ..
You should always untie before you inject - once yer in the vien then loosen the tourniquet.. inject a little, pull back, then inject a little more ..
Welcome to the club! Us IV drug users are the upper-class when it comes to drug use!
Remember, a new fit for every hit, but who the fuck calls them 'fits'? It was just a catchy phrase, but the point is valid - when yer working with a 29g needle, you can only puncture the skin a couple times before it is too dull, and will only do damage to yer viens - something else you want to check for is burs - you can close yer lips around the needle then pull it out - if it rips yer lip then toss it...
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"Don't hate on me, she was probably just some trick I would hit then leave anyway" - Mr. Bling Bling