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Harm Reduction Strange Question Regarding IM Injection

Thanks for the prompt reply. =D

If you wouldn't mind filling me in -- what's the difference between subcutaneous and intramuscular? Is it a matter of distance beyond the skin that separates the two methods? Off the top of my head, I'm guessing subcutaneous refers to underneath the epidermis.

As a side note: do you or does anyone else hate it if you get hit a vein then jostle the rig so it's not in anymore, and then your mixture becomes blood red? That is quite frustrating trying to re-administer the dose. S'just something that crept into my mind.
 
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Thanks for the prompt reply. =D

If you wouldn't mind filling me in -- what's the difference between subcutaneous and intramuscular? Is it a matter of distance beyond the skin that separates the two methods? Off the top of my head, I'm guessing subcutaneous refers to underneath the epidermis.

As a side note: do you or does anyone else hate it if you get hit a vein then jostle the rig so it's not in anymore, and then your mixture becomes blood red? That is quite frustrating trying to re-administer the dose. S'just something that crept into my mind.

OK, basically, imagine your arms. there is flesh on the outside, this is skin. Benath the layer of epidermis there is subcutaneous tissue. Depending on how fit, or heavy, you are, there may be more or less subcutaneous fat. Beneath this, are your muscles.

When you inject subcutaneously, you are only inserting the bevel of the needle so that it pierces the epidermis completley but doesn't go through to the blood vessels, or to the muscle. This will cause a swelling , a "bubble" underneath the skin, raised typically inflamed. This is a "missed shot", or a subcutaneous injection.

When you inject intramuscularly, you use the needle to puncture in an area without a major blood vessel (artery or veins or capillaries, etc), completely through the subcutaneous tissue, until the bevel of the needle has entered the muscle.

In my experience, IMing does not leave a lump like missed shots (accidental subcutaneous injections) do.
 
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