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A subcutaneous injection is called this way because the needle penetrates through the adipose tissue between the skin and muscle.
It is especially useful for insulin therapy because it allows for the constant absorption of the drug. So many people do insulin injections every day to manage their diabetes.
So, to begin with, you need a disinfectant pad, an insulin pen and a pen needle: not just any needle!
They usually come in 3 lengths:
…8 millimetres, perfect for the fold injection technique.
…6 millimetres, for those who insert the needle slanted…
…and it’s the easiest of them all, 4 millimetres: it doesn’t hurt;
all you need to do is insert it straight to immediately reach the adipose layer.
Cover it with the protective cap, screw it off the pen and throw it away… in the specific bin! This way no one will get hurt! And don’t forget: never use it for more than one injection.
It is harmful because the needle is no longer sterile and because insulin crystals form inside the needle blocking the flow and making the therapy ineffective. And then it hurts.
After the first injection, the needle tip loses its sharpness: that’s why any other injections hurt! And then, if you don’t change the needle and the area where you do the injection, there are risks of lipodystrophy!
Lipodystrophy is a disorder that affects adipose tissue.
In the long run, if the injection is not done correctly, the skin hardens making it more difficult and painful for the drug to be absorbed!
An insulin injection can be done in 4 different parts of the body: arms, abdomen, thighs and buttocks.
Make sure to always alternate the sites! This allows the various administration sites to rest a bit.
And don’t forget that you can always ask your physician or pharmacist for help choosing the right therapy and pen needle for your needs!
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