Rapid-acting insulin analogs can be used in insulin pumps. Learn more about the first insulin analog approved for pump therapy.

Insulin pumps are small, computerized pumps. They are about the size of a cell phone. Some are worn on your belt or in your pocket. They deliver a steady, measured dose of insulin through a small plastic tube, or cannula. The tube has a small needle that is placed just under the skin of the abdomen and taped in place. In newer products, the needle is removed, and only the soft plastic tube remains in place. On your command, the pump releases a bolus (a surge) of insulin. This is usually done just before eating to counter the rise in after-meal blood sugar.

New pumps have many features. They can be more convenient than injecting insulin for some people. Insulin pumps do not measure blood sugar levels but can be linked to a wireless meter. All doses of insulin delivered by the pump need to be determined by the individual. Some pumps may help you decide how much insulin you need.

For many people, insulin pumps enable them to enjoy a more flexible lifestyle. Pumps deliver very precise insulin doses for different times of day. Many people prefer this continuous system of insulin delivery to injections. They like using insulin pumps because:

• No injections are needed
• Insulin is delivered more accurately
• There are fewer large swings in blood sugar levels and fewer low blood sugar episodes
• The pumps allow flexibility about when and what to eat

The pump can release an incredibly small dose of insulin continuously. This delivery system most closely mimics (copies) the body's normal release of insulin. But the insulin pump is not an artificial pancreas. You still need to check your blood sugar level to adjust your insulin dose. To use a pump, you must be willing to check your blood sugar at least four times a day. You then use the buttons on the pump to program it to deliver the amount of insulin you need. You also need to learn how to adjust your insulin, food, and exercise in response to those results. An insulin pump will not cure diabetes. At first, it may even require more work than your previous treatment plan.

People need to spend time to be trained how to use their pumps. Insulin pumps can cause health problems if the tube comes out and the flow of insulin stops for a while. Also, for some people, being attached to a pump can be a bother.

You'll want to check with your insurance carrier about insulin pump and supply coverage. Most carriers cover these items if you meet specific criteria.

Yes. But several medicines may affect the way insulin works. Some of these medicines can increase your risk of low blood sugar (hypoglycemia). Others may cause high blood sugar (hyperglycemia). As a result, your doctor may need to adjust your insulin dose. You may also need to check your blood sugar levels closely. It's very important to talk with your doctor about any medicines you are taking when you ask for insulin pump information.

Yes. As long as the cap is on tightly, it should be fine. But even without the snap-on cap, the pump is practically waterproof. Users have showered and accidentally submerged their pumps without any problems. But the housing must be dried with a paper towel. Because pump features vary, check will your manufacturer.

When you purchase your pump, ask how fragile it is. Most pumps, if dropped, do not break.

To help make sure you're getting the right amount of insulin with your pump, remember to:

• Check your blood sugar levels four or more times a day (or as recommended by your doctor)
• Keep your blood sugar level as close to normal as possible
• Change your injection spot as directed
• Check your pump tubing often to make sure it's not kinked or leaking and no air is in the tube
• Change your infusion set often according to your diabetes care plan
• Check the battery often to avoid mechanical failure
• Always follow the manufacturer's recommendations for the pump you are using
• Keep the injection site and your hands clean
• Visit your diabetes care team or doctor as recommended
• Review your diabetes care plan periodically with your doctor and diabetes care team

Talk with your diabetes care team to help you find the support you need. You may also want to visit insulin-pumpers.org.