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Originally Posted by hundredpercent What if C-peptide is normal, and insulin is low?? | C-peptide is a portion of insulin therefore released in equal amounts by the pancrease.
From WebMD; Quote: |
C-peptide testing can also help determine the cause of low blood sugar (hypoglycemia). There are several causes of hypoglycemia, including the excessive use of medication to treat diabetes or the presence of a noncancerous growth (tumor) in the pancreas called an insulinoma. Because man-made (synthetic) insulin does not contain C-peptide, a person with a low blood sugar level from the inappropriate use of insulin will have a low C-peptide level. An insulinoma causes the pancreas to release excessive amounts of insulin, which causes blood sugar levels to decrease (hypoglycemia). A person with an insulinoma will have a high level of C-peptide in the blood.
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