C peptide is a protein released by the pancreas. A peptide released during the cleavage of insulin from proinsulin. Insulin is also released by the pancreas. Insulin is important in keeping blood sugar levels within a normal range. Since C peptide is released in amounts equal to insulin, the level of C peptide in blood indicates the amount...
0.7 – 3.0 ng/ml
When to get Tested
When there is documented acute or recurrent hypoglycaemia (s/s sweating, palpitations, hunger, confusions, blurred vision, fainting and in severe cases seizures and loss of consciousness)
To distinguish body’s own Insulin from outside sources of Insulin
When diagnosed with Insulinoma to monitor effectiveness of treatment and to detect tumour recurrence.
Newly diagnosed Type 2 Diabetes usually has a normal or increased level of C peptide
Type 1 diabetes patients have a low or undetectable level of C peptide
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