C-Peptide
The C-peptide test measures a byproduct released when your body produces insulin, indicating how much natural insulin your pancreas is making. This test helps distinguish between different types of diabetes and evaluates pancreatic function.
Serum Insulin
Serum Insulin test measures the amount of insulin, the hormone that regulates the bloog sugar, circulating in your blood. It helps evaluate insulin resistance, hypoglycemia, and conditions such as insulinoma or polycystic ovary syndrome (PCOS).