If you are using short-acting insulin, it should appear clear, with no particles, discoloration, our cloudiness. [18] X Research source Open the pen to expose the needle and clean the needle with an alcohol swab. Intermediate- or long-acting insulin will appear cloudy, and will need to be mixed before injection. [19] X Research source Gently roll the pen between your hands and turn the pen up and down ten times to mix the insulin sufficiently. [20] X Research source
Air bubbles can cause you to inject the wrong amount of insulin. [23] X Research source
As with syringes, you should have a designated area for your discarded needles. Store them in a hard plastic or metal container (make sure it is labeled). When it is full, tape the container shut and dispose of it appropriately in health products disposal site. You may call your local trash or public health department in regards to sharps disposal programs in your area.
