Insulin test

The risks associated with having blood drawn are:

• bleeding
• fainting or feeling lightheaded
• hematoma (blood accumulating under the skin)
• infection (a slight risk any time the skin is broken)
• multiple punctures to locate veins

Obesity decreases the sensitivity of various tissues to insulin, which normally results in the pancreas overcompensating and making excess insulin.

Veins and arteries vary in size from one patient to another and from one side of the body to the other. Obtaining a blood sample from some people may be more difficult than from others.

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