Insulin Syringe

An insulin syringe is one of the easiest ways for a diabetic to inject insulin into the bloodstream. This insulin helps keep blood glucose levels in a normal range, which prevents many of the complications that go with diabetes. Before using a syringe, you must make sure that you have the proper size and learn how to use it without injuring yourself.


The size of syringe that you use depends on how much insulin you inject at one time. When purchasing a syringe it will have measurement in either milliliters or cubic centimeters.

The most common syringes read U100, which means that you can fit 1 milliliter of solution, which will contain 100 units of insulin. If you require more units of insulin, you can upgrade to a U500 syringe. You should only use these larger syringes if you have a high insulin resistance, which requires you to take more than 200 units of insulin per day.

You can also find an insulin syringe that fits 25, 30 or 50 units at a time. Look at how much insulin you require at any given time and select your syringe based on that number.

These syringes come with different sizes of needles, which you select depending on the amount of fatty tissue on your body. The standard needles are about half an inch in length, while shorter needles are about five-sixteenths of an inch. Those with weight problems might want to find an even longer needle, since the insulin needs to reach the bloodstream.

Reusing Your Syringe

Since syringes cost money, many people now reuse them. Although this can bring about health problems, such as infections, it is acceptable to reuse if you take proper care of your needles. Always ask a doctor before starting such a practice, since he or she can determine if you have a high risk of infection.

Before you reuse, make sure that you sterilize your syringe. Start by pumping the insulin syringe repeatedly to ensure that you have removed all of the insulin. You can then wipe the needle with rubbing alcohol to kill any infection present.

Where to Inject

Where to Inject

Always inject insulin into a fatty part of your body, as this allows your body to absorb it at a normal rate. Avoid injecting too deeply into the body, since it will reach muscle, which absorbs insulin much too quickly. If your body absorbs it too quickly, it could lead to your blood sugar reaching a dangerously high level.

Most people inject into their abdomen, as this area contains a high fat content. The back of the arm, outer thigh and buttocks also contain fat, making them very popular. Do not inject near the bellybutton or into scars or moles, as this can prevent absorption from occurring at an efficient rate.

Rotate your injection sites regularly, as this prevents scar tissue from building up in one particular area. This holds particular importance for those who inject at least three times per day. Use your insulin syringe to inject in the same area of the body at the same time each day, which gives you three or more areas of the body at which you can inject.

Use Your Needles Properly

Take proper care of your needles to avoid any major problems and monitor where you inject your needle daily. Keep in mind that different parts of the body absorb insulin at different speeds and if you change your injection location too often, you will not have consistent levels of insulin present. Most importantly, your insulin syringe can help you to live a normal life, so keep it clean if you decide to reuse your needles and always carefully measure your insulin doses.


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