An insulin pen, which resembles a writing pen, is a medical device that measures and injects insulin into the body. Insulin pens are used to treat blood sugar irregularities usually associated with type 1 diabetes. Some insulin pens contain insulin cartridges that are replaceable, while others require a new pen every time the insulin is empty. Insulin pens operate with disposable needles that are replaced after each use. Although most insulin pens work in the same way, your doctor will inform you if your particular pen has any additional instructions.
Step 1
Remove the cap on the insulin pen. Roll the pen back and forth in your hand for 15 seconds if you are using an insulin that is milky white in color.
Step 2
Determine if you have enough insulin remaining in the cartridge. Most cartridges are translucent or transparent so you are able to see the level of insulin in the pen.
Step 3
Rub the area you will inject the insulin into your body with a sterile alcohol swab. You may also use a sterile cotton ball saturated in rubbing alcohol.
Step 4
Screw or snap the disposable needle onto the insulin pen, then remove the packaging and both covers from the needle.
Step 5
Prime the insulin pen. This will remove any air bubbles, which can be dangerous. Point the insulin pen upward, so the needle is facing toward the ceiling. Turn the dial on the insulin pen to dispense 1 unit of insulin, then press the plunger at the end of the pen. Watch to make sure a small amount of insulin comes out of the needle. Repeat turning the dial to 1 unit and pressing the plunger until insulin comes out of the needle. The dial should switch back to zero when you press the plunger.
Step 6
Set your dose. Depending on the level of insulin you need (usually based on the type of food you have eaten or your current measured blood sugar level). Using the dial, measure the dose of insulin you need to take. Double-check all areas of the pen to make sure the amount is reflected correctly.
Step 7
Hold the end of the insulin pen in your fist with your thumb ready to depress the plunger. With your other hand, pinch the skin of the injection site and insert the needle at a 90-degree angle. Release the hand pinching your skin and press the plunger down with your thumb until the dose reads zero. The pen may also make a clicking noise.
Step 8
Keep the needle in your skin for 10 seconds after you have pushed the plunger. This will keep the insulin from dripping out. Pull the needle out of your skin and if there is a small drop of blood, dab it with a sterile cotton ball.
Tips and Warnings
- Throw the used needle away immediately after use and replace the cap on the insulin pen.
- Do not use insulin if it is not prescribed to you.
Things You'll Need
- Insulin pen
- Disposable needle
- Alcohol swab
- Sterile cotton ball
