This test measures the amount of a protein called C-peptide in your blood. C-peptide is a substance made in the pancreas that helps to regulate insulin production.

The C-Peptide Test measures the level of C-peptide in your blood or urine to evaluate how much insulin your body is producing.

What It Does

• Measures C-peptide, a byproduct of insulin production, to assess pancreatic function.
• Differentiates between type 1 diabetes (low or no insulin production) and type 2 diabetes (normal or high insulin production).
• Identifies causes of low blood sugar (hypoglycemia) and monitors pancreatic tumors (e.g., insulinomas).

Why It’s Important

• Diabetes Management: Helps determine if your pancreas produces enough insulin and guides treatment decisions.
• Hypoglycemia Causes: Identifies whether low blood sugar is due to excessive insulin production or other factors.
• Pancreatic Health: Monitors conditions like insulinomas or evaluates the effectiveness of diabetes treatments.

Bottom Line: This test provides critical insights into your insulin production, helping diagnose diabetes types, manage blood sugar disorders, and monitor pancreatic health.