
How to use long-acting insulin: Types, frequency, peak times, and duration
Long-acting insulin can help to stabilize blood sugar levels throughout the day, with only one or two shots.
Fast-acting insulin replaces the surge of insulin that a healthy pancreas would release at mealtime. In contrast, long-acting insulin mimics the low-level flow of insulin normally released between meals and overnight.
In this way, long-acting insulin works to establish a healthy baseline blood sugar level for the body to work around.
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Using long-acting insulin
Long-acting insulin cannot be delivered in pill form because it would be broken down in the stomach. Instead, it must be injected into the fatty tissue under the skin. From here, it can be gradually released into the bloodstream.
Delivery methods
According to the National Institute of Diabetes and Digestive and Kidney Diseases, there are a few ways to deliver long-acting insulin. These include:
Needle and syringe: a dose of insulin is drawn from a vial into a syringe. Different types of insulin must not be mixed in the same syringe.
Pen: this can be loaded with a cartridge containing a premeasured dose, or prefilled with insulin and discarded after use.
Injection port: a short tube is inserted into the tissue beneath the skin. Insulin can be delivered using either a syringe or a pen. This only requires the skin to be punctured when the tube needs to be replaced.
Injection sites
Long-acting insulin can be injected into the abdomen, upper arms, or thighs.
Abdomen injections deliver insulin into the blood most quickly. The process takes a little more time from the upper arms, and it is eve
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