C-Peptide, Fasting

For men & women

Earliest reports in

18 hours

Contains

1 test

Test price:

₹800

~~₹1050~~

24% off

Know more about this test

C-Peptide test measures the amount of C-Peptide in the blood or urine. It is a chemical produced by the pancrease in almost the same proportion as insulin. Hence, it can be used as an indicator of the amount of insulin produced in the body. This test is mainly used to distinguish between Type I and Type II diabetes. Type I diabetes is characterized by negligible amounts of insulin and C-peptide. However, in type II diabetes, insulin and C-Peptide levels are beyond normal.

This test is also recommended by doctors to check the treatment of diabetes.

Reduced calorie intake and weight management can aid in managing C-peptide levels.

Find out

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Preparation for this test

Sample Collection

Who will collect your samples?

Conducted by

Tata 1mg Labs

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Accredited labs

Highly skilled Phlebos

Verified reports

Who will collect your samples?

Tata 1mg certified phlebotomists

Know more about lab

Tata 1mg Labs (Tata 1mg Technologies Private Limited)

NABL certified, ISO certified

About this lab

TATA 1mg labs is a state-of-art facility offering the highest quality diagnostic services at the convenience of your doorstep. We pride ourselves on three things 1) Assured Quality 2) Best Prices 3) Excellent Turn Around Time. We believe in providing the highest level of transparency to our customers. Testimony to the quality is the ISO certification, a gold standard in the quality of diagnostics. Our entire team is dedicated to providing the best customer experience and continuously strives to come up with solutions to remain in line with the needs of our customers.

What does C-Peptide, Fasting measure?

C-peptide is a short chain of amino acids released into the blood as a by-product of insulin production. This test measures the amount of C-peptide in blood and helps evaluate the production of insulin made by the body (endogenous). This helps in differentiating endogenous insulin from the insulin that is not produced by the body but is taken in as diabetic medication (exogenous). This is possible because the insulin that is taken in as diabetic medications does not generate C-peptide.

Beta cells of the pancreas produce proinsulin which is a biologically inactive molecule. This molecule splits apart to form one molecule of C-peptide and one molecule of insulin. The uptake, utilization, and storage of glucose after it is absorbed in the intestines is facilitated by the hormone called insulin. When insulin is released from the beta cells into the blood in response to increased levels of glucose, equal amounts of C-peptides are also released. Since C-peptide is produced at the same rate as insulin, it is useful as a marker of insulin production.

Test Information is reviewed by: Dr. Swati Gupta (Anand), MBBS, MD Lab Medicine and written by Dr. Lipika Khurana, BDS, PGDHHM . The test details are for information purpose only. Consult a doctor before taking any test. Last updated on: 15th Apr 2026

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C-Peptide, Fasting test price for other cities

Price in	Ahmedabad	Rs. 800
Price in	Allahabad	Rs. 800
Price in	Bangalore	Rs. 800
Price in	Bhopal	Rs. 800
Price in	Chandigarh	Rs. 800

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FAQs related to C-Peptide, Fasting

Where does C-peptide come from?

C-peptide comes from pancreas. It is released into the blood as a by-product of insulin production. Beta cells produce proinsulin which is a biologically inactive molecule. This molecule splits apart to form one molecule of C-peptide and one molecule of insulin.

Does C-peptide level help in diagnosing diabetes?

C-peptide level may help in differentiating type 1 diabetes from type 2 diabetes, but does not actually help in the diagnosis of diabetes. However, it can help your physician in the treatment of diabetes. In case of type 2 diabetes, a fall in C-peptide levels and insulin levels may indicate that the oral hypoglycemic tablets may not help the patient and insulin injection therapy should be started. Thus, C-peptide level can guide the treatment of diabetes.

Can drugs increase C-peptide level?

Yes, the sulphonylurea class of drug, which is used in the treatment of type 2 diabetes, can lead to an increase in C-peptide level. However, this happens if the beta cell reserve of the pancreas is enough. Examples of sulphonylurea drugs include Chlorpropamide, Glimepiride, Glipizide, Glyburide, and Tolbutamide.

How does C-peptide test help in the treatment of type 2 diabetes?

In type 2 diabetes, there can be insulin resistance. To cope up with this resistance, the body produces and releases more insulin, which can also lead to beta cell damage. Type 2 diabetics usually are treated with oral drugs to stimulate the pancreas to make more insulin or decrease insulin resistance (cells to be more sensitive to the insulin that is already being made). Gradually, there can be beta cell damage to such an extent that type 2 diabetics may make very little insulin and require insulin injections. Any insulin that the body makes will be reflected in the C-peptide level. Therefore, the C-peptide test can be used to monitor beta cell activity and capability over time and to help a doctor determine when to begin insulin treatment.

What is stimulated C-peptide test?

If the test is to diagnose either type 1 or type 2 diabetes, an injection of glucagon may be given into the arm between two blood samples in an attempt to stimulate insulin production. Patients with type 1 diabetes mellitus have low C-peptide levels on glucagon stimulation.

Is there any risk associated with this test?

There is no risk associated with the test. However, since this test involves a needle prick to withdraw the blood sample, in very rare cases, a patient may experience increased bleeding, hematoma formation (blood collection under the skin), bruising or infection at the site of needle prick.

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Contains 1 test

C-Peptide, Fasting

Report delivery

Standard time

18 hrs

For slots after 11 AM, report will be delivered in 24 hours.

Preparations

Overnight fasting ( 8-12 hrs). Do not eat or drink anything except water before the test.

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MEET YOUR PHLEBO

Certified & experienced professionals

Tata 1mg phlebotomists are DMLT / B.Sc MLT certified and have 1+ years of experience

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Comprehensive expertise

Other than sample collection, our phlebos are also skilled in first aid, ECG & BP monitoring

WHAT OUR CUSTOMERS ARE SAYING

Despite of very heavy rains, reached on time and did the work very professionally

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It didn't pain a 7 year old and hats off to the collector for being kind and extremely kid friendly

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Very nice person and soft spoken. I felt good talking to him even when I am in fever

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New gloves new everything for each person, it's brilliant how meticulous and detailed your SOPs are.

~ Anita

My mother's veins are thin and slippery and hard to locate but Mohammed Usmani got it so fast, no pain

~ Rama Sampath

No pain at all while collecting blood sample. Fast, quick and properly trained staff.

~ Monalithatte

Sample collection agents was very professional and quick he was so organised with everything

~ Vaishali

C-Peptide, Fasting

What does C-Peptide, Fasting measure?

C-Peptide, Fasting test price for other cities

FAQs related to C-Peptide, Fasting

Where does C-peptide come from?

Does C-peptide level help in diagnosing diabetes?

Can drugs increase C-peptide level?

How does C-peptide test help in the treatment of type 2 diabetes?

What is stimulated C-peptide test?

Is there any risk associated with this test?

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