C-peptide is considered to be a reliable marker of insulin secretion and a c-peptide test for diabetes is done to determine the amount of insulin produced by the body. For patients who have been recently diagnosed with diabetes, a c-peptide test for diabetes is ordered to determine whether the person has type I or type II diabetes. Insulin is a hormone secreted by the human pancreas. Insulin controls the amount of glucose in the blood and facilitates the entry of glucose into the body’s cells, where it is used to produce energy. Insulin and c-peptide are both made by the pancreas, and low levels of c-peptide indicate low levels of insulin production.

C-peptide test for blood sugar can help to find the reason for hypoglycemia or low blood sugar. Manmade insulin does not have c-peptide. So when a diabetic is administered insulin and exhibits symptoms of low blood sugar, it indicates that he is getting an excess of insulin. A c-peptide test for blood sugar showing a low c-peptide level will confirm the fact. Healthcare professionals can adjust the amount of synthetic insulin administered based on the results of the test.

C-peptide test for diabetes is also used to detect insulinomas or tumors in the islet cells of the pancreas. Insulinomas result in an excessive production of c-peptide and insulin, resulting in bouts of hypoglycemia. High levels of c-peptides normally indicate high levels of insulin production. When the glucose levels in the blood are high, insulin production is increased to enable the body to use the glucose. In some cases, cells in muscle and fatty tissues are unable to use the insulin efficiently, and the pancreas compensates for this insulin resistance by producing more insulin. C-peptide test for high blood pressure with results showing elevated levels of c-peptide may also indicate the presence of insulin resistance. This is because insulin resistance has a direct effect on the body’s lipids, leading to the deposit of plaque on arteries. It also increases sodium retention, causing high blood pressure.

C-peptide test for diabetes is an invaluable tool for doctors for monitoring the status of beta cells and the production of insulin in the body. C-peptide tests are also vital to monitor the success of the treatment of insulinoma. Persons with metabolic syndrome or a set of risk factors that indicate the possibility of developing type II diabetes or cardiovascular disease are advised to get a c-peptide test done routinely.