The reason why the injection site is different such as skin, blood vessels and muscles
After Corona 19, people who were reluctant to get an injection were forced to get vaccinated. I have been vaccinated at least 2 times and at most 4 times, and there are more people getting flu shots in preparation for the flu epidemic.
One of the questions I get from frequent injections is the area where the injection is given. I wonder why vaccinations, including the Corona 19 vaccine, are only given to the arm. I usually picture my butt sticking out when I get an injection in the hospital, but the vaccination is completely different.
Injections are prescribed to speed up the effects of the medicine. It is sometimes prescribed when taking medications by mouth doesn’t work. Injection sites include the skin, blood vessels and muscles. The rate at which the drug is absorbed is fastest in the blood vessels. Then muscle, then skin.
Depending on where the drug is injected, intradermal injection where a small amount is injected between the epidermis and dermis, subcutaneous injection into the subcutaneous fat under the dermis, intramuscular injection into the arm or buttock muscle, intravenous injection, and arterial injection directly into the blood vessel divided into etc.
Intradermal injection is used to inject vaccines, serum and drug solutions between the dermis. It is mainly used to examine local skin reactions or localized skin reactions. It’s a method of injection used for disease diagnosis and prevention, not treatment, and is usually placed inside the forearm or on the outside of the upper arm.
Insulin, a drug to treat diabetes, is usually given by injection because it is digested in the stomach when taken by mouth. The method of administration of insulin is subcutaneous injection. Subcutaneous injections are absorbed faster than oral medications, do not interfere with digestive juices, and do not burden the liver. Some hemostatic agents, vitamins, and cardiotonic agents are also given by subcutaneous injection.
A buttock injection is an intramuscular injection. Absorption is fast because muscles have abundant blood vessels. The injection is usually given on the outside of the buttocks, but is sometimes given on the outside of the upper arm. The effect is faster when hitting the hip than the arm. If you press after the injection, the absorption will be better. The reason doctors and nurses ask you to relax when you get an intramuscular injection is because it’s difficult to insert the needle when the muscles are stiff. When a muscle is stiff, it hurts more than when it’s not.
The COVID-19 vaccine and the flu shot are intramuscular injections, but the reason they’re placed on the arm instead of the hip is to inoculate many people quickly. To place it on its side, it takes a long time to lower and raise the bottom, and a larger space is needed because the bottom (?) must be exposed. The cost of time and space is higher than that of the arm.
It is an intravenous injection that is given into a vein on the back of the hand, wrist or inside of the elbow. In the case of intravenous injection, the drug reaches the necessary tissues of the body through the heart within 1 to 2 minutes, so the effect is rapid and the response is certain. However, because the drug enters the body suddenly, if it is too strong or does not fit the body, the condition may not be good. In extreme cases, it can even lead to death. Arterial injection is a direct injection of drugs into an artery and is used in special cases such as the treatment of malignancy.
