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Hub Leaks

Insulin pump hub

Insulin leaks from your reservoir or infusion set are usually so small they are quite hard to detect. Your pump will not warn you of leaks. Insulin has a distinctive smell, often describes as creosote, or railroad ties, or Band Aids. Regular blood sugar tests are the only reliable way to detect leaks. No warning except for high blood sugars!

Cause

A hub will leak when it is not tightened snugly, but may also crack if tightened too much (Makes a thin crack down the hub that is hard to see).

Solution

Tighten hubs firmly but carefully at pump setup. If a leak is suspected, smell the hub for insulin. Insulin usually dries fast and cannot be seen. Replace the reservoir and infusion line if you are unsure about a hub leak.


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