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Many things can affect how you heal after surgery, such as blood sugar levels. If blood sugar levels are too high, you are more at risk for an infection. This is true for all patients. Because of this, you may need blood sugars checked and insulin given.

Whose blood sugar is checked?

Most patients who have surgery.

How often are blood sugars checked?


Your blood sugars will be checked before, during, and after surgery. If you need an insulin drip, blood sugar levels are checked every 1-2 hours. Blood sugar levels can change quickly, so they are checked often

What are normal blood sugar levels?

Normal blood sugar levels are 70 – 99 mg/dL when fasting and before meals. The normal levels after meals is less than140 mg/dL.

What is insulin?


Insulin is a hormone made by the pancreas. It helps to keep blood sugar levels normal.

Why do I need insulin now?


There are many reasons you may need insulin. Stress can raise your blood sugars. Surgery can cause a stress response. Some people’s blood sugars go up when they are worried or anxious. Also, medicines such as steroids or changes in your diet or activity can raise your blood sugars.

What is an insulin drip?


An insulin drip goes through an intravenous line (IV). Insulin given through an IV gets into your body faster and brings down high blood sugars.

Will I need to check my blood sugars or take insulin at home?


Each person varies. Talk with your care team to learn what makes sense for you.