C-Peptide
Shows how much insulin the pancreas is still making of its own.
Also known as: c peptide, connecting peptide
Price on request
We can collect this sample at your home, free of charge. Book a home visit.
- Turnaround
- 3–5 working days
- Preparation
- 8 hours.
- Sample
- Blood sample
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About this test
C-peptide is released in equal amounts to insulin but is not present in injected insulin, so it distinguishes the body's own production from what has been given. It is the test that separates type 1 from type 2 diabetes when the picture is unclear, and it guides whether insulin can be withdrawn.
What it measures
- Fasting serum C-peptide
A note on results. A single test is one part of a clinical picture, not a diagnosis. Discuss your report with a qualified doctor, who will read it alongside your history and examination.
Related to
- Diabetes
Often ordered with this
Anti-GAD Antibody
Identifies autoimmune diabetes in an adult who looks like type 2.
- 5–7 working days
- No fasting
- Home collection
Blood Glucose (Fasting)
A single fasting blood sugar reading, the simplest diabetes screen.
- Same day
- Fasting required
- Home collection
HbA1c (Glycated Haemoglobin)
Your average blood sugar over the last three months, in a single number. No fasting.
- Same day
- No fasting
- Home collection