C-Peptide Test: What Does It Show About Insulin Production? Overview C-peptide is released into the blood when the pancreas makes insulin. Testing it can help estimate the body's own insulin production in selected diabetes-related situations. How is it assessed? Interpretation…
C-Peptide Test: What Does It Show About Insulin Production?
Overview
C-peptide is released into the blood when the pancreas makes insulin. Testing it can help estimate the body's own insulin production in selected diabetes-related situations.
How is it assessed?
Interpretation depends on whether you were fasting, glucose measured at the same time, kidney function and diabetes treatment. A C-peptide number alone does not determine diabetes type or treatment.
Practical next steps
Tell the clinician your glucose result, fasting status and use of insulin or other glucose-lowering drugs. The result is considered alongside HbA1c and clinical history.
When is urgent help needed?
Seizures, unconsciousness or symptoms of severe low blood sugar require emergency help.
Frequently asked questions
Is this information enough for a diagnosis?
No. Symptoms, examination, personal history and additional tests when needed must be considered together.
This article provides general health information and is not a substitute for individual assessment, diagnosis or treatment by a qualified professional.
